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The largest bony fish ever, a whale-like filter feeder.

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The largest bony fish ever, a whale-like filter feeder.
feeder from 155 million years ago.



* MightyGlacier: They are as ridiculously slow as ridiculous gigantic.

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* MightyGlacier: They are as ridiculously slow as ridiculous ridiculously gigantic.



!!''Hybodus''



[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/smbook_metriorhynchus.jpg]]



* NeverSmileAtACrocodile: It eats chunks out of a wounded ''Leedsichthys''.

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* MixAndMatchCritters: Clearly a crocodile, but with the soft skin and fins of a shark.
* NeverSmileAtACrocodile: It eats chunks out of a wounded ''Leedsichthys''.''Leedsichthys'', and it must be dissuaded from biting Nigel, unlike the ''Hybodus''.
* ThoseTwoBadGuys: Feeds on the sick ''Leedsichthys'' along with ''Hybodus'', and it is just as ridiculously small compared to ''Liopleurodon''.

!!''Hybodus''
Your average Jurassic shark, returned. For more troops, visit ''Characters/WalkingWithDinosaurs''.

* CowTools: The head horns. Sure, they had them in ''Walking with Dinosaurs'' already, but this time their bizarre nature is explicitly addressed.
* InformedAttribute: Nigel calls them the weirdest sharks because of the horns. This is harsh considering he met anvil-finned ''Stethacanthus'' not long ago.
* ThoseTwoBadGuys: Now with a reptilian friend, ''Metriorhynchus''.

!!''Liopleurodon''
The reputed largest carnivorous reptile of all time. See ''Characters/WalkingWithDinosaurs'' for other tropes.

* AdaptationalWimp: It is still touted as the largest predator of all time and the crew is afraid of it, plus it gets the second place to the Jurassic all by itself. However, its omnicidal power is far removed from what it was in ''Walking with Dinosaurs''. It only appears in this segment as a scavenger, firt of squids used to bait juveniles and then feeding on an already dead ''Leedsichthys''.
* TheNoseKnows: They can feed both at night and in the day, because they live in "a world of smell" and are not reliant on sight, according to Nigel.
* WeaksauceWeakness: Unfortunately for them (and fortunately for Nigel) this means they can be turned away by a stench bad enough.



The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

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The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.
reptile.

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[[folder:Series whole]]
!!Nigel Marven
A [[AsHimself real British zoologist]] who [[SureLetsGoWithThat travels in time]] to visit the 7 most dangerous seas of Earth's history. For tropes, check the "Chased by Dinosaurs" section in ''Characters/WalkingWithDinosaurs''.

%%* TheAce
%%* ActionizedSequel
%%* CasualTimeTravel
%%* CrazyPrepared
%%* Cliffhanger
%%* DistressedDude
%%* FromBadToWorse: Invoked both by the prologue and the show's premise. In the former, Nigel is chased subsequently by a ''Velociraptor'' pack, a ([[AnimalsNotToScale small]]) ''Giganotosaurus'' and a (large) ''Tarbosaurus''. The {{narrator}} says that he is about to learn that he should never jump in the water while time travelling. He does, and is immediately surrounded by a giant Mesozoic piranha, ''Xiphactinus''. In the latter case, Nigel visits seven seas, one of which is considered more dangerous than the former.
%%* SequelEscalation
%%* TookALevelInBadass
%%* TookALevelInJerkass
[[/folder]]



A small primitive whale. See entry in Characters/WalkingWithBeasts.

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A small primitive whale. See For tropes, see entry in Characters/WalkingWithBeasts.



The first filter whale-sized cetacean, but it is an active hunter instead of a filter feeder. See Characters/WalkingWithBeasts.

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The first filter whale-sized cetacean, but it is an active hunter instead of a filter feeder. See Characters/WalkingWithBeasts.For other tropes, see Characters/WalkingWithBeasts.

* StockFootageFailure: Like in WWB, a shot of a modern whale raising its tail over the surface is used in one scene. Unlike in WWB, you can see not just the fluke but also the dorsal fin of the modern whale, revealing that it has a much shorter tail than ''Basilosaurus''.



* ApocalypseHow: Will be killed by the Ice Age and thus miss modern humans by a geological hair breath.



A large filter feeding fish.

* AnimalsNotToScale: Like ''Liopleurodon'', it is much larger than the real animal (the real thing was about 16 meters long).

to:

A large [[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/smbook_leedsichthys.jpg]]
The largest bony fish ever, a whale-like
filter feeding fish.

feeder.

* AnimalsNotToScale: Like ''Liopleurodon'', it is much larger than the real animal (the real thing actually was about (about 16 meters long).long).
* AwesomeButImpractical: For all the awe of its size, there doesn't seem to be a real advantage to it.
* BloodInTheWater: Happens everytime a critter gets a bite out of the sick one.
* DeathByAThousandCuts[=/=]EatenAlive: Hungry carnivores ([[ThreateningShark sharks]], [[NeverSmileAtACrocodile crocodiles]], and eventually [[SeaMonster pliosaurs]]) hang onto a sick one and begin to eat as it continues swimming. The fish could take losing a lot of pounds, but the problem is that predators just keep coming one after another.




to:

* GiantEqualsInvincible: Subverted. Predators don't bother usually with hunting it due to its size, but it has no way to outrun them or fight back. Once they start eating it alive, there is no stop. Its only defense is to travel in groups and hope someone else gets eaten, much like any given fish in the Ocean.
* MightyGlacier: They are as ridiculously slow as ridiculous gigantic.
* MixAndMatchCritters: Your average fish + a filter feeding whale.

!!''Hybodus''
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** The first location being a kelp forest and their mention in the book likely means that the seagoing ground sloth ''Thalassocnus'' was going to be featured at one point.

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** The first location being a South American Pacific kelp forest and their mention in the book likely means almost confirms that the seagoing ground sloth ''Thalassocnus'' was going to be featured at one point.
but was cut. Alternatively, a setting in the northern Pacific during the Miocene (which also had kelp forests) could have included desmostylians like ''Paleoparadoxia'', a.k.a. the lovechildren of manatees and hippopotamuses.
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The first large marine carnivore on Earth, from a wooping 450 million years ago.

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The first large marine carnivore predator on Earth, from a wooping 450 million years ago.



* VomitIndiscretionShot: It vomits its prey bony plates and the shark mail Nigel put on them almost as soon as it eats.

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* VomitIndiscretionShot: It vomits its prey prey's bony plates and the shark mail Nigel put on them almost as soon as it eats.

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* SharkFinOfDoom: Shown thrice. One when the segment begins; another when the ''Ancient Mariner'' attracts an adult Megalodon for the first time; and the third one when it sails next to the boat and Nigel manages to stick the "shark cam" on the fin dorsal itself.



* RidiculouslyCuteCritter: Seriously, why aren't stuffed toys of this thing?

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* RidiculouslyCuteCritter: Seriously, why aren't there stuffed toys of this thing?



A small filter-feeding whale hunted by the adult Megalodon.

* {{Fanon}}: It is never identified in the franchise, but fans have basically agreed to call it ''Cetotherium''.

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A small medium-sized filter-feeding whale hunted by the adult Megalodon.

* {{Fanon}}: It is never identified in the franchise, but fans have basically agreed to call that it is ''Cetotherium''.



A giant filter feeding fish.

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A giant large filter feeding fish.

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* AnachronismStew

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* AnachronismStewAnachronismStew: Actually from the Late Miocene rather than the Pliocene.
* BlackBeadEyes: Unusually for a mammal.
* MeaningfulName: ''Odobenocetops'' means "Whale-faced Walrus".



* MonsterMunch: A prey source for Megalodon.

!!''Cetotherium''

* {{Fanon}}
* MonsterMunch
* NoNameGiven

to:

* MonsterMunch: A Only featured as a potential prey source for Megalodon, although it does escape the segment unharmed. The team invokes this when they disguise a camera as an ''Odobenocetops''.
* RidiculouslyCuteCritter: Seriously, why aren't stuffed toys of this thing?
* WhatMeasureIsANonCute: Probably why it is allowed to live.

!!Unnamed whale
A small filter-feeding whale hunted by the adult
Megalodon.

!!''Cetotherium''

* {{Fanon}}
{{Fanon}}: It is never identified in the franchise, but fans have basically agreed to call it ''Cetotherium''.
* MonsterMunch
ImpendingDoomPOV: Seen from the "shark cam" attached to the adult Megalodon.
* NoNameGivenMonsterMunch: Appears only as, and when the Megalodon makes it its prey.
* NoNameGiven: In fairness, it's most likely not meant to be a particular whale.



!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

to:

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
[[folder:The Jurassic]]




to:

[[/folder]]

[[folder:The Cretaceous]]
!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.



* ZergRush: Likes to travel in groups to protect their young. [[spoiler:And then they surround the boat...]]

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* ZergRush: Likes to travel in groups to protect their young. [[spoiler:And then they surround the boat...]]]]
[[/folder]]

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* MixAndMatchCritters: One third elephant, one third rhinoceros, and one third hippopotamus.

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* MixAndMatchCritters: One third elephant, one third rhinoceros, and one third hippopotamus.



** Megalodon was distributed worldwide and existed for 20 million years, which means any other giant Miocene marine predator could have been featured alongside it. Candidates include killer whale-sized dolphin ''Macrodelphinus'', true killer whale ''Orcinus citoniensis'', largest crocodile ever ''Purussaurus'', seagoing gharial ''Piscogavialis'', and GiantFlyer ToothyBird ''Pelagornis''. Monster sperm whale ''Livyatan'' only gets left out because it [[ScienceMarchesOn wasn't discovered]] [[NewerThanTheyThink until 2010]].

to:

** Megalodon was distributed worldwide and existed for 20 million years, which means any other giant Miocene marine predator could have been featured alongside it. Candidates include killer whale-sized dolphin ''Macrodelphinus'', true killer whale ''Orcinus citoniensis'', four-tusked walruses ''Pontolis'' and ''Gomphotaria'', largest crocodile ever ''Purussaurus'', seagoing gharial ''Piscogavialis'', and GiantFlyer ToothyBird ''Pelagornis''. Monster sperm whale ''Livyatan'' only gets left out because it [[ScienceMarchesOn wasn't discovered]] [[NewerThanTheyThink until 2010]].
** The first location being a kelp forest and their mention in the book likely means that the seagoing ground sloth ''Thalassocnus'' was going to be featured at one point.



* AnachronismStew



* RedShirt: A prey source for Megalodon.

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* RedShirt: MonsterMunch: A prey source for Megalodon.


Added DiffLines:


* {{Fanon}}
* MonsterMunch
* NoNameGiven

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* OneHitKill: Specialized in rushing from the deep and killing whales with one bite to the belly.



* ThreateningShark: He makes the shark from ''Film/{{Jaws}}'' look like a minnow.

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* ThreateningShark: He It makes the shark from ''Film/{{Jaws}}'' look like a minnow.




to:

** Megalodon was distributed worldwide and existed for 20 million years, which means any other giant Miocene marine predator could have been featured alongside it. Candidates include killer whale-sized dolphin ''Macrodelphinus'', true killer whale ''Orcinus citoniensis'', largest crocodile ever ''Purussaurus'', seagoing gharial ''Piscogavialis'', and GiantFlyer ToothyBird ''Pelagornis''. Monster sperm whale ''Livyatan'' only gets left out because it [[ScienceMarchesOn wasn't discovered]] [[NewerThanTheyThink until 2010]].



A whale with long tusks.

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[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_odobenocetops.png]]
A small whale with long tusks.

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to:

* VomitIndiscretionShot: It vomits its prey bony plates and the shark mail Nigel put on them almost as soon as it eats.



* ScienceMarchesOn: The year after the show, it was published that it also lived in rainforests inland and actually survived for longer there. So it lived in mangroves, but it wasn't a mangrove specialist as implied.

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* ScienceMarchesOn: The year after the show, it was published that it also lived in rainforests inland and actually survived there for longer there. longer. So it lived in mangroves, but it wasn't a mangrove specialist as implied.
implied in the show.



* TheDreaded: The plan to deal with an adult Megalodon causes an argument among the ''Ancient Mariner'''s crew.



* PrehistoricMonster:
* SuspiciouslySimilarSubstitute:

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* PrehistoricMonster:
PrehistoricMonster: What happens when you apply AnimalsNotToScale to a [[EverythingIsEvenWorseWithSharks great white shark]]. Sure, the show's called ''Sea Monsters'', but Nigel does call this one a "monster" to its face.
* SuspiciouslySimilarSubstitute:SuspiciouslySimilarSubstitute: To ''Dunkleosteus''. Both are giant fish top predators, both make fearsome sharks look pathetic in comparison, both try to get Nigel through the shark cage, and both are used for the episode's CliffHanger.

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The size of the adult seems alright and these animals didn't live all in the same place and the same time. Still will include a mention in TWAPG Plot


* AllAnimalsAreDomesticated: Averted. It turns down Nigel's offer of food and charges at him.



* PrehistoricMonster: One of the best TruthInTelevision examples. This is a rhinoceros-like animal with the horn numbers doubled, even though it's maladaptative and limits its senses.




to:

* ScienceMarchesOn: The year after the show, it was published that it also lived in rainforests inland and actually survived for longer there. So it lived in mangroves, but it wasn't a mangrove specialist as implied.



A small primitive whale. See Characters/WalkingWithBeasts.

to:

A small primitive whale. See entry in Characters/WalkingWithBeasts.



!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

to:

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
[[folder:The Pliocene]]



A huge shark.
* HeroKiller: Comes close to eating Nigel alive.
* RuleOfCool: Bizarrely inverted: Not only was it ''smaller'' than the real deal, it was part of the greatest community of giant apex predators (including ''Livyatan'', a huge whale-eatign whale, ''Macrodelphinus'', an orca-size dolphin with a BigFreakingSword attached to its nose, and ''Piscogavialis'', a marine crocodile), meaning its sea should be the most dangerous sea in RealLife.

to:

A huge [[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_megalodon.jpg]]
The largest shark ever, an active hunter instead a filter-feeder like the whale shark. It swam the world's oceans as recently as 4 million years ago.

* AllThereInTheManual: The Megalodon name comes from the species name, ''C. megalodon''. The genus is either ''Carcharodon'' or ''Carcharocles''.
* BiggerIsBetter: Nigel finds a juvenile in the coast relatively early, but he is not content until they find an adult out at sea.
* BlackBeadEyes: Like any other
shark.
* HeroKiller: Comes close to CliffHanger: The second episode ends with the Megalodon seemingly eating Nigel alive.
alive. [[LikeYouWouldReallyDoIt This isn't the case, of course.]]
* RuleOfCool: Bizarrely inverted: Not {{Expy}}: Since only was it ''smaller'' than the real deal, it was part of teeth are known, its aspect and behavior is taken from the greatest community of giant apex predators (including ''Livyatan'', a huge whale-eatign whale, ''Macrodelphinus'', an orca-size dolphin modern great white shark (which actually coexisted with a BigFreakingSword attached to it and is not its nose, and ''Piscogavialis'', a marine crocodile), meaning its sea should be the most dangerous sea in RealLife.descendant).
* PrehistoricMonster:
* SuspiciouslySimilarSubstitute:




to:

* TheyWastedAPerfectlyGoodPlot[=/=]WhatCouldHaveBeen:


Added DiffLines:

!!''Cetotherium''
[[/folder]]

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

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* AnachronismStew: Obviously, there is always room for new discoveries, but there are no known theropods from this time in Europe yet ([[HandWave not identified as the location]], but home to ''Peteinosaurus'', ''Cymbospondylus'', ''Nothosaurus'' and ''Tanystropheus''). The closest thing is the small dinosauriform ''Saltopus''.

to:

* AnachronismStew: Obviously, there is always room for new discoveries, but there are no known theropods from this time in Europe yet ([[HandWave not identified as the location]], but home to ''Peteinosaurus'', ''Cymbospondylus'', ''Nothosaurus'' and ''Tanystropheus''). The closest thing is the small dinosauriform ''Saltopus''.



* ArtisticLicensePaleontology: ''Bothriolepis'' was a bottom feeder that lived mostly in freshwater (although it could venture into the sea close to the shore) and ate rotten, mostly vegetarian matter. Those muscled pectoral fins were to push itself along the ground, and it could only see upwards. Here, it is shown swimming near the sea surface and catching Nigel's bait.

to:

* ArtisticLicensePaleontology: ''Bothriolepis'' was a bottom feeder that lived mostly in freshwater (although it could venture into the sea close to the shore) and ate rotten, mostly rotten vegetarian matter. Those muscled pectoral fins were to push itself along the ground, and it could only see upwards. Here, it is shown swimming near the sea surface and catching Nigel's bait.



!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

to:

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
[[folder:The Eocene]]



A large horned pachyderm.

to:

[[quoteright:276:http://static.tvtropes.org/pmwiki/pub/images/sm_arsinoitherium.jpg]]
A large Egyptian horned pachyderm.
pachyderm from 36 million years ago.

* AndNowForSomethingCompletelyDifferent: This is a large terrestrial quadruped, not a seagoing animal. Nigel {{handwave}}s that it qualifies as a SeaMonster because it swims brackish waters to visit different islands in the mangroves.
* AuthorsSavingThrow: Included here after its notable absence from ''Series/WalkingWithBeasts'''s "Whale Killer", which is also about ''Basilosaurus'' and set in the same location.



* GracefulInTheirElement: Averted. It is equally awkward on land and on water.
* MixAndMatchCritters: One third elephant, one third rhinoceros, and one third hippopotamus.




to:

* RuleOfCool[=/=]SequelEscalation: Sure, they could have just reused ''Moeritherium'', but who would have wanted that? ''Moeritherium'' would never go on RhinoRampage against Nigel.

!!''Dorudon''
A small primitive whale. See Characters/WalkingWithBeasts.

!!''Basilosaurus''
The first filter whale-sized cetacean, but it is an active hunter instead of a filter feeder. See Characters/WalkingWithBeasts.
[[/folder]]

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
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* SuspiciouslySimilarSubstitute: Yet another shark that comes first and is irrelvant next to the prehistoric SeaMonster of choice.

to:

* SuspiciouslySimilarSubstitute: Yet another shark that comes first and is irrelvant irrelevant next to the prehistoric SeaMonster of choice.
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Added DiffLines:

* AnachronismStew: Shown around 10 million years too early. The longer-snouted ''Preondactylus'' was a closer match.
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* ArtisticLicensePaleontology: Possibly the restoration in the ''Walking with...'' series that is most hated by paleontologists, down to TheScrappy levels. The shedding tail is a pure invention of the show, both gratuite and nonsensical (How would an aquatic reptile propel itself in the water without a tail? Why have a tail at all if it was so unnecessary that the animal could shed it entirely and suffer no ill effects? How long would it take for an animal that size to grow it back?); and worse, it was an assumption based itself on a fringe theory about ''Tanystropheus'' being related to lizards (all of which ''don't'' shed their tail), that almost no taxonomists defended even back then. To add insult to injury, the show restored ''Tanystropheus'''s face much thinner than its skull suggests, making it look goofy.

to:

* ArtisticLicensePaleontology: Possibly the restoration in the ''Walking with...'' series that is most hated by paleontologists, down to TheScrappy levels. The shedding tail is a pure invention of the show, both gratuite and nonsensical (How would an aquatic reptile propel itself in the water without a tail? Why have a tail at all if it was so unnecessary that the animal could shed it entirely and suffer no ill effects? How long would it take for an animal that size to grow it back?); and worse, it was an assumption based itself on a fringe theory about ''Tanystropheus'' being related to lizards (all of which (who ''don't'' all shed their tail), that almost no taxonomists defended even back then. To add insult to injury, the show restored ''Tanystropheus'''s face much thinner than its skull suggests, skull, making it look goofy.



* {{Irony}}: It has no teeth. Those scary teeth-like thinks are bony plates that are actually part of its head's skeleton.

to:

* {{Irony}}: It has no teeth. Those scary teeth-like thinks things are bony plates that are actually part of its head's skeleton.

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Changed: 22

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* AnachronismStew: Obviously, there is always room for new discoveries, but there are no known theropods from this time in Europe yet ([[HandWave not identified as the location]], but home to ''Peteinosaurus'', ''Cymbospondylus'', ''Nothosaurus'' and ''Tanystropheus''). The closest thing is the small dinosauriform ''Saltopus''.



* HistoricalVillainDowngrade: Ironically, the first known theropod from Europe is ''Liliensternus'' a couple of million years later, which despite being a relative of ''Coelophysis'' was a respectable 5-meters-long beast; the smaller coelophysoids like ''Procompsognathus'' and ''Coelophysis'' itself only arrived some dozen million years later. Maybe Nigel should have worried about walking on land.



* WhatMeasureIsANonBadass: So is it okay for a TV crew to kill a fish just for a chance to attract a larger one?

to:

* WhatMeasureIsANonBadass: So it is it okay for a TV crew to kill a an innocent fish just for a chance to attract a larger one?



* ThreateningShark: Subverted. The cage protects him, and the ''Dunkleosteus'' he's hoping for is far worse.

to:

* ThreateningShark: Subverted. The cage protects him, and the ''Dunkleosteus'' he's Nigel is hoping for is far worse.

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Changed: 16

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[[folder:7th: Ordovician]]

to:

[[folder:7th: [[folder:The Ordovician]]



[[folder:6th: Triassic]]

to:

[[folder:6th: [[folder:The Triassic]]



[[folder:5th: Devonian]]

to:

[[folder:5th: [[folder:The Devonian]]



[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_stethacanthus.jpg]]



* EverythingIsEvenWorseWithShark: Just when they were waiting for ''Dunkleosteus'', this guy appears.

to:

* EverythingIsEvenWorseWithShark: EverythingIsEvenWorseWithSharks: Just when they were waiting for ''Dunkleosteus'', this guy appears.


Added DiffLines:

* SuspiciouslySimilarSubstitute: Yet another shark that comes first and is irrelvant next to the prehistoric SeaMonster of choice.

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* TheDreaded: The ''Ancient Mariner'''s crew is both fearful and looking forward to meet with it.

to:

* TheDreaded: The ''Ancient Mariner'''s crew is both fearful and looking forward to meet with it.



A small armoured fish. Although distantly to ''Dunkleosteus'', it is completely inoffensive.

to:

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_bothriolepis.jpg]]
A small armoured fish. Although distantly related to ''Dunkleosteus'', it is completely inoffensive.



* MonsterMunch: Appears only to be eaten by the ''Dunkleosteus''.

to:

* MonsterMunch: Appears only to so it can be eaten by the ''Dunkleosteus''.
* PosthumousCharacter: It is killed right in its introduction and its role mostly happens when it is dead.
* WhatMeasureIsANonBadass: So is it okay for a TV crew to kill a fish just for a chance to attract a larger one?



* AlwaysSomeoneBetter
* CowTools
* PrehistoricMonster
* PropRecycling
* ThreateningShark

to:

* AlwaysSomeoneBetter
AlwaysSomeoneBetter: Nigel takes notice of it because of how weird it is, but he can't wait for it to go and a ''Dunkleosteus'' to arrive. Ironically, he's in a shark cage and ''Stethacanthus'' is closer to what he would be usind the cage for in real life.
* CowTools
AnimalsNotToScale: It appears to be average for a shark, when in reality was rather small (c. 70 cm long)
* PrehistoricMonster
ArtisticLicensePaleontology: It was also a bottom feeder, and thus unlikely to be attracted to Nigel's cage.
* PropRecycling
BlackBeadEyes: Well, it is a shark.
* ThreateningSharkCowTools: Besides its long fin whips and claspers, it has a bizarre, anvil-like structure where its dorsal fin should be, and there are ''[[BodyHorror teeth]]'' growing out of it. Nigel speculates that it could have a role in display for mating or territoriality.
* EverythingIsEvenWorseWithShark: Just when they were waiting for ''Dunkleosteus'', this guy appears.
* PrehistoricMonster: Take a shark, and make it as bizarre as you can. ''Stethacanthus'' is weirder.
* PropRecycling: Nonetheless, it is still the same ol' shark model used for ''Hybodus'' and ''Physogaleus'', but with the whips and anvil added.
* ThreateningShark: Subverted. The cage protects him, and the ''Dunkleosteus'' he's hoping for is far worse.

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* MisplacedWildlife: Inverted. It was misplaced in "New Dawn", which was set in Arizona, but it is at home here, surrounded by European animals.

to:

* MisplacedWildlife: Inverted. It was misplaced in "New Dawn", Blood", which was set in Arizona, but it is at home here, surrounded by European animals.



* SuspiciouslySimilarSubstitute: To "New Dawn"'s ''Coelophysis''. They look close enough to have been modified from the same model, but they are still different and the coat is also different. This is most likely to avoid MisplacedWildlife as ''Coelophysis'' is a North American genus.

to:

* SuspiciouslySimilarSubstitute: To "New Dawn"'s Blood"'s ''Coelophysis''. They look close enough to have been modified from the same model, but they are still different and the coat is also different. This is most likely to avoid MisplacedWildlife as ''Coelophysis'' is a North American genus.



A huge, armoured predatory fish.

* BiggerIsBetter
* {{Cliffhanger}}
* TheDreaded
* EatsBabies: The one we meet eats a baby one.
* {{Irony}}

to:

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_dunkleosteus.jpg]]
A huge, armoured predatory fish.

fish relative from 360 million years ago.

* BiggerIsBetter
* {{Cliffhanger}}
* TheDreaded
* EatsBabies: The one we
BiggerIsBetter: Nigel won't set up for ''Stethacanthus''. He wants to meet a ''Dunkleosteus'', and a big ''Dunkleosteus'' at that.
* {{Cliffhanger}}: The first episode ends with Nigel in a shark cage, as a ''Dunkleosteus'' charges onto it.
* TheDreaded: The ''Ancient Mariner'''s crew is both fearful and looking forward to meet with it.
* EatsBabies[=/=]IAmAHumanitarian: The larger adult
eats a baby one.
smaller one attracted by the remains of its last meal, zero fucks given.
* {{Irony}}{{Irony}}: It has no teeth. Those scary teeth-like thinks are bony plates that are actually part of its head's skeleton.



!!''Pterichthyodes''

to:

!!''Pterichthyodes''
!!''Bothriolepis''
A small armoured fish. Although distantly to ''Dunkleosteus'', it is completely inoffensive.

* AllThereInTheManual: Not named onscreen.
* ArtisticLicensePaleontology: ''Bothriolepis'' was a bottom feeder that lived mostly in freshwater (although it could venture into the sea close to the shore) and ate rotten, mostly vegetarian matter. Those muscled pectoral fins were to push itself along the ground, and it could only see upwards. Here, it is shown swimming near the sea surface and catching Nigel's bait.
* TheBait: Takes the bait and is used in turn to bait the ''Dunkleosteus''.
* BlackBeadEyes: It has two small, button-like black eyes on the top of its head.
* MonsterMunch: Appears only to be eaten by the ''Dunkleosteus''.




to:

A bizarre-looking early shark.

* AlwaysSomeoneBetter
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* DeletedScene: In the book, Nigel observes them as the lay eggs on the beach, at night. There is a photo of Nigel with the eggs, so it was almost certainly filmed. By being cut, the show unwittingly avoided a case of ScienceMarchesOn, as it is now believed that all sea reptiles bar sea turtles had live birth.

to:

* DeletedScene: In the book, Nigel observes them as the they lay eggs on the beach, at night. There is a photo of Nigel with the eggs, so it was almost certainly filmed. By being cut, the show unwittingly avoided a case of ScienceMarchesOn, as it is now believed that all sea reptiles bar sea turtles had live birth.
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Added DiffLines:

* FromNobodyToNightmare: Same stock from which plesiosaurs and pliosaurs will evolve from.

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* TheBait: You don't say.



* MonsterMunch: Enforced. Its only role is to be eaten by the orthocone. So much that Nigel gets annoyed when a sea scorpion tries to eat it first.



A small, primitive dinosaur seen at the beach.

to:

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_coelurosaur.jpg]]
A small, primitive dinosaur seen briefly at the beach.


Added DiffLines:

!!''Pterichthyodes''

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[[quoteright:336:http://static.tvtropes.org/pmwiki/pub/images/sm_nothosaur_head.jpg]]



* MisplacedWildlife: Inverted. It was misplaced in "New Dawn", which was set in Arizona, but it is at home here, surrounded by other European animals.

to:

* MisplacedWildlife: Inverted. It was misplaced in "New Dawn", which was set in Arizona, but it is at home here, surrounded by other European animals.

Added: 84

Changed: 462

Removed: 93

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to:

* ScienceMarchesOn: According to the latest revision, it was not adapted to swim in any shape or form so it would have lived on the shore or in shallow waters only, and its posterior region was much heavier than the front despite what its long neck might suggest. Ironically, this is a return to the consensus theory (i.e. ''Tanystropheus'' was a seashore egret) that had been abandoned before the show came out.



[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_peteinosaurus.png]]



* MisplacedWildlife: Inverted. It was misplaced in "New Dawn", which was set in Arizona, but it is at home here surrounded by other European species.

to:

* MisplacedWildlife: Inverted. It was misplaced in "New Dawn", which was set in Arizona, but it is at home here here, surrounded by other European species.
animals.
* NoNameGiven: Only called "pterosaur".



* LivingProp: Even more than ''Peteinosaurus'' as they have little reason to be near the sea.

Added: 682

Changed: 2239

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An inquisitive human-sized sea reptile.

* DeletedScene
* MixAndMatchCritters

to:

An inquisitive inquisitive, human-sized sea reptile.

* DeletedScene
DeletedScene: In the book, Nigel observes them as the lay eggs on the beach, at night. There is a photo of Nigel with the eggs, so it was almost certainly filmed. By being cut, the show unwittingly avoided a case of ScienceMarchesOn, as it is now believed that all sea reptiles bar sea turtles had live birth.
* MixAndMatchCrittersMixAndMatchCritters: Half crocodile, half monitor lizard, with anglerfish teeth. And the book has them reproducing like sea turtles.



* ScaryTeeth
* WeaksauceWeakness

to:

* ScaryTeeth
ScaryTeeth: Long like needles and sharp like knives, used to catch slippery fish.
* WeaksauceWeakness
WeaksauceWeakness: Like crocodiles, they have strong muscles to close their mouth but the muscles opening it are weak. So he can disarm one just by grabbing its head from behind.



[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_tanystropheus.jpg]]



* ArtisticLicensePaleontology
* GentleGiant

to:

* ArtisticLicensePaleontology
ArtisticLicensePaleontology: Possibly the restoration in the ''Walking with...'' series that is most hated by paleontologists, down to TheScrappy levels. The shedding tail is a pure invention of the show, both gratuite and nonsensical (How would an aquatic reptile propel itself in the water without a tail? Why have a tail at all if it was so unnecessary that the animal could shed it entirely and suffer no ill effects? How long would it take for an animal that size to grow it back?); and worse, it was an assumption based itself on a fringe theory about ''Tanystropheus'' being related to lizards (all of which ''don't'' shed their tail), that almost no taxonomists defended even back then. To add insult to injury, the show restored ''Tanystropheus'''s face much thinner than its skull suggests, making it look goofy.
* GentleGiantGentleGiant: Nigel identifies it as not dangerous right away. It only eats small fish.



* LongNeck: So long in fact that it barely has a body!

to:

* LongNeck: So long long, in fact fact, that it barely has a body!body!
* MixAndMatchCritters: Half snake, half iguana.




* TheCameo
* MisplacedWildlife

to:

\nA small, primitive pterosaur.

* TheCameo
TheCameo: It is the same species seen in the first episode of ''Series/WalkingWithDinosaurs'', and it only appears at the beginning of the segment.
* MisplacedWildlife
MisplacedWildlife: Inverted. It was misplaced in "New Dawn", which was set in Arizona, but it is at home here surrounded by other European species.




* TheCameo
* FromNobodyToNightmare
* LivingProp
* SuspiciouslySimilarSubstitute

to:

\nA small, primitive dinosaur seen at the beach.

* TheCameo
TheCameo: Only shown at the beginning of the segment.
* FromNobodyToNightmare
FromNobodyToNightmare: Shown here to say that dinosaurs have just appeared in this time. According to Nigel, they are all still small and non threatening like this one.
* LivingProp
LivingProp: Even more than ''Peteinosaurus'' as they have little reason to be near the sea.
* SuspiciouslySimilarSubstituteNoNameGiven: Only identified as "coelurosaur" in accompanying material, probably following the old tendency to call ''all'' small theropods coelurosaurs regardless of actual philogeny. As per current definition, coelurosaurs don't appear until the Middle Jurassic.
* SuspiciouslySimilarSubstitute: To "New Dawn"'s ''Coelophysis''. They look close enough to have been modified from the same model, but they are still different and the coat is also different. This is most likely to avoid MisplacedWildlife as ''Coelophysis'' is a North American genus.

Added: 385

Changed: 134

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An inquisitive sea reptile.

to:

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_nothosaurus.png]]
An inquisitive human-sized sea reptile.
reptile.

* DeletedScene
* MixAndMatchCritters




to:

* ScaryTeeth
* WeaksauceWeakness


Added DiffLines:

* ArtisticLicensePaleontology
* GentleGiant


Added DiffLines:


!!''Peteinosaurus''

* TheCameo
* MisplacedWildlife

!!Unnamed theropod dinosaur

* TheCameo
* FromNobodyToNightmare
* LivingProp
* SuspiciouslySimilarSubstitute


Added DiffLines:

* BiggerIsBetter
* {{Cliffhanger}}
* TheDreaded


Added DiffLines:

* {{Irony}}


Added DiffLines:


!!''Stethacanthus''

* CowTools
* PrehistoricMonster
* PropRecycling
* ThreateningShark

Added: 104

Changed: 251

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* TheWorfEffect: Shown casually feeding on a sea scorpion after they have been formly established as a threat.

to:

* TheWorfEffect: Shown casually feeding on a sea scorpion after they have been formly established several times as a threat.



* GentleGiant: Despite its size, it is a bottom feeder and would never endanger Nigel when it was alive.



A large primitive ichthyosaur, the largest reptile of its time 230 million years ago.

to:

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_cymbospondylus.jpg]]
A large primitive ichthyosaur, ichthyosaur and the largest reptile of its time time, 230 million years ago.



* ScienceMarchesOn: In 2012, a much larger and better-armed relative, ''Thalattoarchon" (Or [[AwesomeMcCoolname "Ruler of the Seas"]]), specialized in killing big sharks and other marine reptiles, dethroned it as the ultimate Triassic badass.

to:

* ScienceMarchesOn: In 2012, a much larger and better-armed relative, ''Thalattoarchon" ''Thalattoarchon'' (Or [[AwesomeMcCoolname "Ruler of the Seas"]]), specialized in killing big sharks and other marine reptiles, dethroned it as the ultimate Triassic badass.

Added: 2249

Changed: 1261

Removed: 762

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[[folder:Ordovician]]

to:

[[folder:Ordovician]][[folder:7th: Ordovician]]



The first large marine carnivore on Earth, from a wooping 430 million years ago.

to:

The first large marine carnivore on Earth, from a wooping 430 450 million years ago.




to:

* WeaksauceWeakness: It doesn't like flashing lights, and if you grab the tip of its shell it is incapable of reaching you.
* TheWorfEffect: Shown casually feeding on a sea scorpion after they have been formly established as a threat.



* DemonicSpiders: They are everywhere and a constant menace.



* PowerPincers: Their WeaponOfChoice.



* WhatMeasureIsANonCute: Can you imagine Nigel rushing another animal's mating grounds, picking one of them and casually throwing it away?



* ZergRush: They rush and deflat Nigel's inflatable boat when he runs over their breeding grounds.

!!''Isotelus''
[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_isotelus.jpg]]
A large trilobite used by Nigel to bait the orthocone.

* AllThereInTheManual: Not named onscreen.
* BigCreepyCrawlies: Another massive arthropod.
* BiggerIsBetter: Justified, because Nigel wants to bait a large animal.
* LivingProp: Though it mostly appears as ''dead'' prop, a living one can be seen briefly on the sea floor when Nigel is heading to meet the orthocone.
* PosthumousCharacter: The one used by Nigel is already dead when he picks it.
* {{Squick}}: Nigel plucks out one of its eyes to put the camera. He even warns [[ButtMonkey the cameraman]] and advices him to [[VomitingCop turn away]].



!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

to:

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

[[folder:6th: Triassic]]
!!''Cymbospondylus''
A large primitive ichthyosaur, the largest reptile of its time 230 million years ago.

* AnimalReactionShot: The one AlwaysABiggerFish: It surprises Nigel tamed by eating the severed tail of the ''Tanystropheus''.
* MixAndMatchCritters: It looks like a cross between later ichthyosaurs (like ''Ophthalmosaurus''
in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters"
''Series/WalkingWithDinosaurs'') and is the only animal from "Chased by Dinosaurs" to do so.
even later mosasaurs, who are unrelated.
* GiantFlyer: Not ''giant'' giant, but still ScienceMarchesOn: In 2012, a much larger and better-armed relative, ''Thalattoarchon" (Or [[AwesomeMcCoolname "Ruler of the Seas"]]), specialized in killing big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is
sharks and other marine reptiles, dethroned it as the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
ultimate Triassic badass.




!!Cymbospondylus
A predatory Ichthyosaur.

* ScienceMarchesOn: In 2012, a much larger and better-armed relative, ''Thalattoarchon" (Or [[AwesomeMcCoolname "Ruler of the Seas"]]), specialized in killing big sharks and other marine reptiles, dethroned it as the ultimate Triassic badass.

to:

\n!!Cymbospondylus\nA predatory Ichthyosaur.\n\n* ScienceMarchesOn: In 2012, a much larger and better-armed relative, ''Thalattoarchon" (Or [[AwesomeMcCoolname "Ruler of the Seas"]]), specialized in killing big sharks and other marine reptiles, dethroned it as the ultimate Triassic badass.\n[[/folder]]

[[folder:5th: Devonian]]




to:

[[/folder]]

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
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Added DiffLines:

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_scorpion.jpg]]


Added DiffLines:

* BloodInTheWater: When one scratches Nigel's leg.


Added DiffLines:

* GracefulInTheirElement: They can walk on land, but they have no reason to run. In water, they can both swim quickly or walk over the sea floor.


Added DiffLines:

* TheWorfEffect: One injures Nigel, setting the "danger" premise of the series straight.

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Removed: 756

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!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

!!Orthocone
The biggest carnivore in the Ordovician.

to:

!!''Pteranodon''
[[folder:Ordovician]]
!!Giant Orthocone
[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/sm_orthocone.jpg]]
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

!!Orthocone
The biggest
first large marine carnivore on Earth, from a wooping 430 million years ago.

* AllThereInTheManual: The actual genus is ''Cameroceras''. Only called orthocone or giant orthocone
in the Ordovician.
show.



A grotesque sea invertabrate.

to:

A grotesque sea invertabrate.
invertebrate.

* AllThereInTheManual: This genus is called ''Megalograptus''.



* ScaryScorpions: It's in their name.

to:

* NamesToRunAwayFromReallyFast: Would you dip your toes in a sea with "sea scorpions" in it?
* ThePrecursors: Believe it or not, these critters are the first sea animals to venture on land.
* ScaryScorpions: It's in Although they don't sting with their name.
tail.
[[/folder]]

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.
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Added DiffLines:

!!''Pteranodon''
The [[StockDinosaursNonDinosaurs famous]] flying reptile. %%To be moved into a separate SM page.

* AnimalReactionShot: The one Nigel tamed in "Sea Monsters" screeches in panic when Nigel's boat is capsized.
* BreakoutCharacter: It managed to make it into "Sea Monsters" and is the only animal from "Chased by Dinosaurs" to do so.
* GiantFlyer: Not ''giant'' giant, but still big enough to qualify.
* {{Irony}}: Eats fish, almost gets eaten ''by'' a fish (''Xiphactinis'').
* MisplacedWildlife: In "Chased by Dinosaurs", wherein it's seen in South America. Rectified in "Sea Monsters".
* NiceHat: Its head crest is basically one of these.
* PteroSoarer: Though to BBC's credit, this is the ''most'' accurate (for its time) pterosaur depicted in the series.
* StockDinosaurs: Having failed to appear in "Walking With Dinosaurs", it made its debut here.
* TeamPet: One becomes this for Nigel's boat crew in "Sea Monsters", where Nigel feeds it a fish and it sits on the boat with them. It seems to take a liking to the crew, seeing as it appears to be genuinely frightened when a Mosasaur capsizes Nigel's boat.

!!Orthocone
The biggest carnivore in the Ordovician.

* CombatTentacles: Its weapon of choice.
* EverythingsSquishierWithCephalopods: A large cephalopod with a conical shell.
* KrakenAndLeviathan: The Kraken type, due to being a cephalopod.
* LightningBruiser: Its jet propulsion system gives it much better mobility than the sea scorpions.

!!Sea Scorpion
A grotesque sea invertabrate.

* BigCreepyCrawlies: VERY creepy crawlies. Looks more live a Lovecraftian horror than a scorpion.
* EatsBabies: Of their own kind.
* LightningBruiser: Fairly swift and vicious, with massive claws.
* ScaryScorpions: It's in their name.

!!''Nothosaurus''
An inquisitive sea reptile.

* NoSenseOfPersonalSpace: They cheerfully swim up to Nigel out of curiosity. Nigel keeps a cattle prod handy in case they get ''too'' close.
* RidiculouslyCuteCritter: By sea reptile standards.

!!''Tanystropheus''
A long necked sea reptile.

* LifeOrLimbDecision: The speculative tail shedding.
* LongNeck: So long in fact that it barely has a body!
* NoodlePeople: A noodle reptile.

!!Cymbospondylus
A predatory Ichthyosaur.

* ScienceMarchesOn: In 2012, a much larger and better-armed relative, ''Thalattoarchon" (Or [[AwesomeMcCoolname "Ruler of the Seas"]]), specialized in killing big sharks and other marine reptiles, dethroned it as the ultimate Triassic badass.

!!''Dunkleosteus''
A huge, armoured predatory fish.

* EatsBabies: The one we meet eats a baby one.
* ScaryTeeth: Though they're not actually teeth.

!!''Arsinoitherium''
A large horned pachyderm.

* AwesomeButImpractical: Its giant horns are useful for fighting, but because of the way they're positioned, they obscure its vision.
* RhinoRampage: Although it's more closely related to elephants.

!!{{Megalodon}}
A huge shark.
* HeroKiller: Comes close to eating Nigel alive.
* RuleOfCool: Bizarrely inverted: Not only was it ''smaller'' than the real deal, it was part of the greatest community of giant apex predators (including ''Livyatan'', a huge whale-eatign whale, ''Macrodelphinus'', an orca-size dolphin with a BigFreakingSword attached to its nose, and ''Piscogavialis'', a marine crocodile), meaning its sea should be the most dangerous sea in RealLife.
* ThreateningShark: He makes the shark from ''Film/{{Jaws}}'' look like a minnow.

!!''Odobenocetops''
A whale with long tusks.

* MixAndMatchCritters: Looks like a mix between a narwhal, a walrus and a manatee.
* RedShirt: A prey source for Megalodon.

!!''Leedsichthys''
A giant filter feeding fish.

* AnimalsNotToScale: Like ''Liopleurodon'', it is much larger than the real animal (the real thing was about 16 meters long).
* GentleGiant: Extremely large, but totally harmless.

!!''Metriorhynchus''
A speedy marine crocodile.

* FragileSpeedster: Very fast, but lacks the armor plating of other crocodiles. As Nigel puts it, it has "sacrificed defense for speed".
* NeverSmileAtACrocodile: It eats chunks out of a wounded ''Leedsichthys''.

!!''Hesperornis''
A flightless seabird.

* FeatheredFiend: Subverted. They're ugly and aggressive, but also harmless.
* GracefulInTheirElement: They can't fly or even walk on land, but are graceful swimmers.
* NoisyNature: On land, at their nesting grounds.
* RedShirt: They exist to show how badass all the other animals are by getting eaten. This thing is the size of a living human.
* ToothyBird: Justified because primitive birds had teeth in real life.

!!''Squalicorax''
A shark.

* ThreateningShark: Downplayed considering the sea of Cretaceous filled with even more dangerous beasts

!!''Halisaurus''
A mosasaur.

* LesserOfTwoEvils: A smaller relative of the giant ''Tylosaurus''.

!!''Xiphactinus''
A large predatory fish.

* BigEater: Eating a two meter long bird in one gulp!
* NightmareFace: A perpetual one.

!!''Elasmosaurus''
A long necked plesiosaur.

* SeaMonster: An aversion. It's harmless.

!!''Archelon''
A big sea turtle

* TurtlePower: A massive sea turtle.

!!''Tylosaurus''
The biggest mosasaur.
* BigBad: Poses the biggest threat of the sea monsters.
* TheDreaded: This thing manages to scare Nigel's ''Pteranodon''.
* TheFamilyThatSlaysTogether: To quote the narrator: "The only thing worse than swimming with a 60-foot-long killer marine reptile...is swimming with its ''[[OhCrap family]].''" TruthInTelevision.
* HeroKiller: Like the ''Megalodon'', it comes close. [[spoiler:But TheStinger implies that it ''succeeds'']].
* LightningBruiser: And even faster in RealLife.
* SeaMonster: The straightest example of them all. Here's a hint: Why is the Cretaceous the deadliest sea of all? Because ''this guy'' lives there! In RealLife, however, Megalodon ties it for points in badass.
* ScienceMarchesOn: We now know it has a shark-like tail instead of a paddle-like one. This, combined with the fact it was warm-blooded, would have made it a fast, active hunter and give it access to polar regions.
* ZergRush: Likes to travel in groups to protect their young. [[spoiler:And then they surround the boat...]]

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