History ScienceMarchesOn / WalkingWith

* When talking about predation on ''Iguanodon'', they mention one specimen of ''Iguanodon'' that was found in association with a ''Neovenator'' on the Isle of Wight. That particular specimen (MIWG 6344 )would later be classified as a specimen of ''Mantellisaurus'' (one of many taxa that were split off from ''Iguanodon'' in the late 2000s) before finally being named as the holotype of its own genus in 2021, ''Brighstoneus''.

* At the time the episode was produced, scientists believed that sabertooths had displaced terror birds as apex predators with their arrival, hence their depiction as scavengers. However, it is now considered more likely that the terror birds were still able to remain as apex predators in competition with the sabertooths. Also, the species would have been ''Titanis'' in reality, but a theory presented at the time was that ''Titanis'' was a synonym of ''Phorusrhacos'', which is mentioned in some supplementary material. Eventually it turned out that not many large terror birds were still around in South America by the time ''Smilodon'' arrived in the continent, as ''Titanis'' is more well known from being the sole North American terror bird, and would've instead coexisted with the older ''Smilodon gracilis'', the earliest known ''Smilodon''.

[[folder:Into the Jaws of Death]]

* The ''Elasmosaurus'' model has aged rather poorly, suffering from severe shrinkwrapping (quite odd, since ''Cryptoclidus'' did not suffer the same issue), which gives it a very bulbous head and skinny neck, along with an overly rotund body, while later reconstructions show it as a much more streamlined and hydrodynamic animal. It's also given a length of 50 feet, but that is likely an overestimate, as the largest known elasmosaurids likely didn't grow longer than 40 feet and taxonomic shuffling later placed the largest Niobrara specimens in the genus ''Styxosaurus'' (previously treated as a synonym of ''Elasmosaurus'' by some), leaving ''Elasmosaurus'' at a more modest 35 feet (its incomplete holotype is the only specimen that can confidently be assigned to ''Elasmosaurus'').
[[/folder]]

!!'''Dangerous Seas'''

!!'''Into the Jaws of Death'''

!!'''To Hell..... and Back?'''

* In the entry about ''Utahraptor'', it's mentioned that giant dromaeosaurs are also known from Mongolia and Japan, the latter referring to ''Fukuiraptor'', which was named the same year the book was published (2000), but upon its description, the initial notion that it was a large dromaeosaur was dismissed and it was identified as a carcharodontosaur instead, before eventually being recognized as an early megaraptoran in 2010.

* ''Muttaburrasaurus'' is said to have been found in both Queensland and New South Wales, which is cited as possible evidence of potential migratory behavior. However, the fossils from the Griman Creek Formation of New South Wales only consist of isolated teeth and a scapula (a shoulder blade), which have been deemed to be an indeterminate ornithopod due to their fragmentary nature, thus ''Muttaburrasaurus'' is only conclusively known from Queensland (the Allaru and Mackunda Formation).

* We briefly see a flock of generic pterosaurs flying over the polar forest (it’s the same ''Pteranodon''-esque model we see in “Giant of the Skies”). While pterosaur fossils were known from Australia at the time, none were properly described. After WWD, we have named no less than four genera; ''Thapunngaka'', ''Mythunga'', ''Aussiedraco'', and ''Ferrodraco'', with the former three having lived right around the time the episode takes place. Furthermore, ''Thapunngaka'' and ''Ferrodraco'' turned out to be very similar to ''Tropeognathus'', with the former growing nearly as large.

* The "dwarf allosaur" seen in this episode was based on a single ankle bone excavated from the Wonthaggi Formation (upper Aptian, circa 120-115 mya) in Victoria during the late 1980s, which was tentatively attributed to ''Allosaurus'', or at least an allosaur of some kind, and the idea of a “dwarf polar allosaur” gained popularity during the 90s, mainly due to a lack of any other large theropod known from Cretaceous Australia, even though its classification was highly controversial among workers, due to its fragmentary nature. But in 2009, a whole decade after the series aired, a similar-sized but much more complete and related theropod was dug up from the Winton Formation in Queensland, dubbed ''Australovenator wintonensis'', and its discovery led to the naming of a new, previously unknown lineage of tetanuran theropods called the megaraptorans. While their classification remains controversial (since they seemingly share characteristics of both allosaurs and coelurosaurs), based on ''Australovenator'' and related genera, we know that they looked very different from other large tetanurans, [[https://en.wikipedia.org/wiki/Australovenator#/media/File:Australovenator_reconstruction.jpg with elongated snouts and long arms armed with formidable claws]].
* Following the description of ''Australovenator'', it was briefly considered possible that it and the mystery “polar allosaur” might have been the same creature, with the ankle bone being anatomically similar to the corresponding bone in ''Australovenator'', and several BBC websites started referring to the polar allosaur as ''Australovenator''. But in 2013, the Winton Formation was found to be late Cenomanian in age (circa 96-94 mya) instead of late Aptian-early Albian (115-110 mya) as was initially thought, making the ankle bone far too old to be assigned to ''Australovenator'', but it most likely belonged to a similar animal, and further finds from the Eumeralla Formation (home of ''Leaellynasaura'') showed that megaraptorans did indeed live in southern Australia close to the time of the Wonthaggi ankle bone.

* The small size of the holotype of the megalosaur ''Eustreptospondylus oxoniensis'' (the only specimen we have of the animal) is no longer thought to be an example of island dwarfism but rather because the specimen wasn’t fully grown. Furthermore, the fact that we have also discovered giant stegosaurs like ''Dacentrurus'' (one of the biggest of its kind) and even giant sauropods like ''Cetiosaurus'' in the same localities shows that the dinosaurs found in Late Jurassic Britain were just as big as their more famous American counterparts, despite the narrator’s insistence that large dinosaurs were a rare sight here. Other sites, like the famous Lourinhã Formation in Portugal, further prove that large dinosaurs were in fact quite common in the European isles. Notably, the latter site revealed that the apex predator trio of ''Allosaurus'', ''Torvosaurus'', and ''Ceratosaurus'' weren’t just endemic to North America but also to Portugal, along with possible fossils of ''Stegosaurus'' and the massive diplodocid ''Supersaurus''.

* In contrast to the agile, orca-like open ocean predator seen in the episode, studies of the skeleton of ''Basilosaurus'' suggest that it was actually quite‭ ‬restricted in terms of movement, unlike the smaller ''Dorudon'', who was a diving, three-dimensional swimmer.‭ The larger whale swam in a two-dimensional [[https://en.wikipedia.org/wiki/Fish_locomotion#Swimming anguilliform]] fashion, since its vertebrae ‬were hollow and likely filled with fluid, unlike‭ ‬in modern whales, which are solid,‭ and the skeletal anatomy of the tail suggests that it had a small fluke, which would have aided only in vertical motion. Muscle attachments along the spine also imply that ''Basilosaurus'' had relatively weak muscles and could neither‭ ‬dive deep nor swim for extended periods. ‬These characteristics point to an animal that only swam and hunted near the surface and/or in shallow water, [[{{Irony}} while the show showed it being forced into shallow water from the open sea]].

* The accompanying book identifies the unnamed theropod as being a coelurosaur. However, coelurosaurs did not evolve until the Jurassic Period (technically, [[AnachronismStew no dinosaurs would have existed in Europe at the time]], they had only just evolved). This can be chalked up to the fact coelurosaur was once a more generic term that lumped together all small theropods, regardless of actual relation; it wasn't until mid-2000s that coelurosaurs as a true clade was concretely defined.

* The accompanying book identifies the unnamed theropod as being a coelurosaur. However, coelurosaurs did not evolve until the Jurassic Period (technically, [[AnachronismStew no dinosaurs would have existed Europe at the time]], they had only just evolved). This can be chalked up to the fact coelurosaur was once a more generic term that lumped together all small theropods, regardless of actual relation; it wasn't until mid-2000s that coelurosaurs as a true clade was concretely defined.

!!'''Water Dwellers'''

!!'''Reptile's Beginnings'''

!!'''Clash of Titans'''

* In 2019, the [[Website/{{YouTube}} YouTuber]] Ben G. Thomas made a series dedicated to the accuracies and inaccuracies of each episode in the series according to current science which can be found [[https://www.youtube.com/playlist?list=PLnlSriM4g75_weGmrlPLaYZPdp2yK7_50 here]].

* Any and all shots of pterosaurs taking off bipedally became inaccurate after it was discovered that they launched quadrupedally. The documentary also avoids showing the large pterosaurs taking off almost entirely, because at the time it was uncertain how such large flying animals could lift up from the ground (''Chased by Dinosaurs'' states they relied on winds blowing off steep cliffs to get themselves aloft). It's now known that they probably pushed off their front limbs to vault themselves into the air.

* WWD was perhaps the last hurrah of sea turtle-like pleisosaurs in documentary media before the idea fell out of favor with the TurnOfTheMillennium. [[UsefulNotes/StockDinosaursNonDinosaurs Plesiosaurs]] [[http://dx.doi.org/10.1126/science.1205689 gave birth to alive newborns in water]] just like the fish-like [[UsefulNotes/StockDinosaursNonDinosaurs ichthyosaurs]]; [[http://markwitton-com.blogspot.com/2019/01/plesiosaurs-on-rocks-terrestrial.html and it's now pretty much universally agreed that they could not crawl onto land because of their limb anatomy and the shape of their chest]], not even the small ones, thus making them far more analogous to cetaceans.

* In the accompanying book there is a DeletedScene where female [[UsefulNotes/PrehistoricLifeNonDinosaurianReptiles nothosaurs]] (primitive Triassic sea reptiles related to the more famous [[UsefulNotes/StockDinosaursNonDinosaurs plesiosaurs]]) leave their eggs on the beach at night (see WhatCouldHaveBeen on the Trivia page). However [[http://www.nature.com/nature/journal/v432/n7015/full/nature03050.html it turns out that nothosaurs might have been viviparous]].

* ''Ornithocheirus'' is said to have lasted pretty much the entirety of the Cretaceous (140-70 mya) and that it had an almost cosmopolitan distribution, both of which reflect its former status as a wastebasket taxon, with the type species, O. ''simus'', now being restricted to the Albian of Britain, while many other Mid Cretaceous species have been reassigned to various different genera. The very Early Cretaceous ones have been reclassified as ''Serrodraco'' and ''Targaryendraco'' respectively, and the claim that it lasted until the Late Cretaceous is based on the Campanian “''Ornithocheirus buenzeli''”, known only from a humerus and jaw fragment now thought to represent an azhdarchid. Oddly enough, it also lists Australia as part of its geographic range, most likely referring to fragmentary pterosaur fossils from the Toolebuc Formation found in 1980 and 1991 respectively, which have since been described as ''Aussiedraco'' and ''Mythunga''.

* ''Proterosuchus'' is depicted as a semi-aquatic, crocodile-like swimmer. This was the traditionally held view, but more recent studies find evidence that conflicts with this idea and suggests it was a land-based predator, such as having strong, well-developed limb bones, nostrils placed on the sides of the skull rather than the top, and its fossils being known from arid environments.

* The accompanying book briefly mentions the possibility that ''[[UsefulNotes/StockDinosaursTrueDinosaurs Anatotitan]]'' is synonymous with ''[[UsefulNotes/StockDinosaursTrueDinosaurs Edmontosaurus]]''. As of September 2011, this is the majority view. Also, in 2013 it was discovered that ''Edmontosaurus regalis'' had a crest of skin on its head like a rooster's, suggesting that ''E. annectens'' (the species that includes "''Anatotitan''") may have one as well.

* ''Dunkleosteus''' tooth-like extensions of its armor were later discovered to have more likely been actual teeth that merged together. It also would likely have had lips covering them.

* Just after they finished the ''Gorgosaurus'' models, ''Yutyrannus'' (a feathered tyrannosaur) was found, although the possibility of larger tyrannosaurid being mostly unfeathered was revived in [[https://royalsocietypublishing.org/doi/10.1098/rsbl.2017.0092 2017]][[note]]the discussion section of the paper does state it's possible they had feathering along the dorsum[[/note]], especially since ''Yutyrannus'' came from a more basal side branch to later tyrannosaurs.

* While the pterosaurs are correctly portrayed with pycnofibers, in all cases this is very sparse and in the CG models, basically nonexistent. In reality, it's probable that pterosaur pelts were equal in density to typical land mammals (such as bats), and most species would have been very noticeably fluffy/furry. For instance, compare their ''[[http://www.dinofan.com/Life/LifeFormImages/FantasyImages/WDAnurognathus1.gif Anurognathus]]'' to [[https://pteros-img.imgix.net/anurognathus_andrey-atuchin.png?w=2000&fm=jpg&auto=compress a modern reconstruction]].

* Any and all shots of pterosaurs taking off bipedally became inaccurate after it was discovered that they launched quadrupedally. The documentary also avoids showing the large pterosaurs taking off almost entirely, because at the time it was uncertain how such large flying animals could lift up from the ground (''Chased by Dinosaur'' states they relied on winds blowing off steep cliffs to get themselves aloft). It's now known that they probably pushed off their front limbs to vault themselves into the air.

* Pterosaurs wings have two major problems- one, they all come to an acute point, while we now know that many of the larger families would have had rounded wings, and when landed the wings folded outward like an origami crane, as opposed to the (rather complicated and hard to model) way they folded inwards and behind the animal's arms.

* [[https://www.science.org/doi/10.1126/science.abo7877 There is increasing evidence]] to suggest that most, if not all dinosaurs had their teeth covered in lizard-like scaly lips, but the show uses the then much more common, conservative, and [[RuleOfCool cooler-looking]] interpretation that they all had their teeth exposed, with only half lips.

* ''Postosuchus'' and ''Placerias'' are both depicted as sluggish and ungainly relics from a bygone age that are destined to be supplanted by the "superior" dinosaurs (not unlike how we used to view [[DumbDinos dinosaurs]] themselves back in the early to mid-20th century in relation to mammals), who are framed as being more versatile, fleet-footed and have the unique gift of bipedalism. Suffice to say, none of that is true, as all terrestrial Triassic tetrapods were just as agile, sophisticated, and well-adapted to their environment as early dinosaurs and most of them likely died out as a result of the [[https://en.wikipedia.org/wiki/Triassic%E2%80%93Jurassic_extinction_event Triassic-Jurassic mass extinction]], which also allowed dinosaurs to take over ([[HistoryRepeats in the same way mammals took over thanks to the K-T mass extinction]])[[note]]The narration by Creator/KennethBranagh does mention the Triassic-Jurassic extinction during the credits, mostly glossing over it by stating how the dinosaurs have continued to evolve[[/note]], and bipedalism wasn’t unique to dinosaurs, as several other contemporary archosaurs, such as rauisuchids (including ''Postosuchus''), poposaurids, and shuvosaurids were also bipedal and shared many other morphological similarities to true dinosaurs (the last of which looked [[https://en.wikipedia.org/wiki/Effigia#/media/File:Effigia_BW.jpg nigh-identical to dinosaur]] [[https://en.wikipedia.org/wiki/Shuvosaurus#/media/File:Shuvosaurus_BW.jpg to the untrained eye]]).

* In 2007, the best material of ''Othnielia'' was placed in the newly-coined genus ''Othnielosaurus'' based on studies on the teeth of Morrison ornithischians. And then in 2018, ''Othnielosaurus'' and ''Othnielia'' along with ''Drinker'' have been discovered to be the same animal as ''Nanosaurus''.

* The end of the episode gives off the impression that sauropods globally declined at the end of the Jurassic, which was a common view at the time (possibly why none appear in subsequent episodes). However, about the time the show came out, there were many new fossil remains of Cretaceous sauropods being discovered in the southern hemisphere, particularly South America, showing that they only seemed to have declined in the northern continents (and even then persisted until the end of the Late Cretaceous there in species like ''Alamosaurus'' and ''Magyarosaurus''), but continued to flourish in the south in great numbers and diversity. In fact, sauropods of the Cretaceous tended to reach much larger sizes more often than those of the Jurassic.

* At least some ichthyosaurs could actually give birth to more than five pups at a time (up to eleven or more), and they came out head first. Most famous fossils purported to show mothers dying in childbirth are actually of pregnant ichthyosaurs who died before birth, and the fetuses dropped out during decomposition.

* ''Ornithocheirus'' is portrayed with delicate, thin-membraned wings like those of a bat, that make it unable to fly while in the rain and easily warded off by a flock of tiny enantiornithine birds. Subsequent studies suggest pterosaur wings were much thicker and more complex in structure than bat wings, with separate layers of air sacs, fibrous tissues, muscles, and a strengthening, weave-like outer layer known as "actinofibrils". As for the supposed need to keep the wings from getting wet, the prevailing theory now is that fish-eating pterosaurs would ''dive'' into the water to catch fish, like gannets.

* Some argue that ''[[UsefulNotes/PrehistoricLifeHadrosaurPredecessors Leaellynasaura]]'' needs plumage. It also might have actually had a really long tail, although it's not clear if these long-tailed fossils belonged to ''Leaellynasaura'' or a different, but similar animal.

* Much like moas, wetas are now believed to have flown into New Zealand long after it separated from Australia and Antarctica, rather than being isolated there from the beginning.

* Later papers suggest, contrary to most theropods, that most of ''Tyrannosaurus'' was covered in scales (small amounts of feathers are still a possibility), however, the scales themselves were tiny, more akin to those seen on a bird's foot than the thicker, lizard-style scales seen in the show. In reality, the scales would have been too small to see unless you were standing very close. The snout is also believed to have had thick keratinous scales on it, too, which are absent in [=WWD's=] depiction.

* The giant pterosaur ''[[UsefulNotes/StockDinosaursNonDinosaurs Quetzalcoatlus]]'' is shown as a fish eater hunting prey on the wing (the episode implies that it's normally a seagoing animal and happened to come in from the coast, seemingly ignoring that its remains are known entirely from semi-arid inland ecosystems that would've been hundreds of kilometres from the sea), while we now know it was actually stork-like in habits. In fact, it probably wouldn't have hesitated to eat juvenile tyrannosaurs, like the ones in the program! We now know ''Quetzalcoatlus'' actually had a much larger head and neck.

* The accompanying book briefly mentions the possibility that ''[[UsefulNotes/StockDinosaursTrueDinosaurs Anatotitan]]'' is synonymous with ''[[UsefulNotes/StockDinosaursTrueDinosaurs Edmontosaurus]]''. As of September 2011, this is the majority view. Also, in 2013 it was discovered that ''Edmontosaurus regalis'' had a crest of skin on its head like a rooster's, suggesting that ''E. annectens'' (the species that includes "''Anatotitan''") may have as well.

* The crew went to great pains to film on areas of Chile with no grass. Now it is known that grass was already present in the Late Cretaceous (whether it was present in large amounts in the Hell Creek region is still unclear however).
* It has been now revealed that hadrosaurs had horse hoof-like forefeet, with a spiked index finger.

* Whether the robust beak of ''Gastornis'' was to crush large nuts or small animals has been a matter of debate since its discovery. WWB went with the animals and presented ''Gastornis'' as the top predator in the Eocene European jungle. However, the latest study on calcium isotopes found that ''Gastornis''' data was more similar to herbivorous mammals and reptiles (such as dinosaurs). There goes the show's iconic line about the Eocene being a time when birds ate horses.[[note]]Near the end of their time in the early Pleistocene, the superficially similar terror birds, which ''were'' carnivores, did however eat horses, as possibly did the earlier giant bathornithids of North America.[[/note]] In addition, the idea of ''Gastornis'' being carnivores was already suspect, since the beak lacked a hook and its feet lacked claws. More likely creodonts (the order containing ''Hyaenodon''), mesonychids, and terrestrial crocodilians such as ''Boverisuchus'' would have been the apex predators.
** Eggshells from France reveal ''Gastornis'' eggs were similar in size to cassowary eggs, while the one in the episode seems ostrich-size if not larger. Cassowaries lay three eggs or more at once.
* It's not completely agreed up whether leptictids hopped like modern kangaroos, or walked bipedally like theropod dinosaurs. A close relative of ''Leptictidium'', ''Leptictis'' is currently believed to have walked rather than hopped, but differences between the skeletons make it insufficient evidence to suggest either way for ''Leptictidium''.

* ''Smilodon'' was a terrible runner and would not be able to chase prey in the manner shown, due to its short tail making it harder for it to turn during a chase, and its more muscular body making it less suited for running in a chase than lions and tigers. That said, S. ''populator'' had proportionally longer legs than S. ''fatalis'', which implies that it was more adept at running. This makes sense, since the former often inhabited savannah-like environments (as shown in the episode), though it was still not a pursuit predator.
* Studies at the time stated the saber teeth were brittle and could break when they hit bone, which actually was shown in the episode with the ''Smilodon'' being very careful when eating carcasses. Later studies, however, have elaborated on this to explain their teeth weren't ''that'' brittle, and could still safely remove meat from carcasses. They could even eat much smaller bones, similar to what lions can do.
* If ''Smilodon'' lived in packs, they would not have a lion-like structure (1-2 or so males with a lot of females), due to males and females being similar sizes. Wolf-like packs have been suggested (1 main male/female pair, with a mixed group of other members), although the evidence for any sort of pack is thin.

* ''Proterosuchus'' is depicted as a semi-aquatic, crocodile-like swimmer. This was the traditionally held view, but more recent studies find evidence that conflict with this idea and suggest it was a land-based predator, such as having strong, well-developed limb bones, nostrils placed on the sides of the skull rather than the top, and its fossils being known from arid environments.

* A 2023 study concluded from ''Euparkeria'''s anatomy that it was not bipedal and was strictly quadrupedal, unable to rear up even for short periods because it was far too top-heavy. Archosaur bipedalism must have evolved some time later after the Early Triassic.

* A study on the life history of Big Al presented at the 2022 SVP meeting indicates that Al actually lived until at least sixteen, rather than dying at six as shown. Tissue structures found in the medullary cavities also suggested that Al may have been female and recently laid eggs at the time of death, rather than Al being depicted male and failing to attract a mate as depicted in the documentary.

* ''Dunkleosteus''' tooth-like extensions of its armor were later discovered to have been actual teeth that merged together. It also would likely have had lips covering them.

* The show was made in 2003, and as a result missed out on the discovery of ''[[http://en.wikipedia.org/wiki/Livyatan_melvillei Livyatan melvillei]]''. Its fossil was discovered in the same area as the ''C. megalodon'' episode, and had they set it just a bit earlier, both of these "monsters" would have appeared. Also of note is the fact that period had even more large marine carnivores than the Cretaceous.

* The ''Pterygotus'' entry states that sea scorpions' closest living relatives are horseshoe crabs, which was the traditionally held view, but a 2013 study found they were actually sister taxon to arachnids.

* ''Rhamphorhynchus'' specified range includes Tanzania, but these so-called remains, once dubbed "''Rhamphorhynchus tendagurensis''", has since been reevaluated as being too scrappy to concretely belong to the genus. On that note, it's also given a rather broad fossil range of 170-145 mya, because in the past, many fragmentary rhamphorhynchoid fossils have been attributed to it (including finds from Oxford Clay like the likewise dubious "''Rhamphorhynchus jessoni''"), but later research clarified that the only conclusive ''Rhamphorhynchus'' fossils material all comes from the Tithonian of Europe (150-145 mya).

* The featured dromaeosaur goes unnamed because, at the time, there wasn't a named dromaeosaur taxon that was sympatric with T. rex, though supplementary material calls it ''Dromaeosaurus'', as isolated teeth from Hell Creek and adjacent sites had previously been tentatively attributed to it and ''Saurornitholestes'', but both are only known from the previous Campanian age. Post-2013, there are now three named dromaeosaurs that coexisted with T. rex (the giant ''Dakotaraptor'', the small ''Acheroraptor'', and the midsized ''Dineobellator'', with the last one hailing from New Mexico). Furthermore, we now know that ''Dromaeosaurus'' had a rather deep, robust skull armed with strong jaws, and the same is true for ''Saurornitholestes '' ([[https://twitter.com/DavidEvans_ROM/status/1405155294540357637/photo/1 though it wasn't known until a well-preserved skull was found in 2014]]), in contrast to the ''Deinonychus''-like skull shown here (on account of it being a PaletteSwap of the ''Utahraptor'', itself based entirely on ''Deinonychus''). It has even been suggested that the former two were more reliant on their heads for killing than the contemporary Asian velociraptorines (though they would have still used their feet and talons).

* ''Ambulocetus'' is portrayed as very awkwardly being able to walk on land, while still being a graceful swimmer, when the modern consensus is that it most likely [[https://www.sciencedaily.com/releases/2016/07/160725105228.htm couldn't support itself on land]].

* When Nigel initially sees a young ''Argentinosaurus'', he says that it's unmistakable what species it is. This statement is probably because ''Argentinosaurus'' was, at the time, the only sauropod species conclusively identified from the Huincul Formation. Four other sauropod species have since been described, making the statement that it can't be mistaken for anything else shakier. He says the same thing for ''Giganotosaurus'', but two large carcharodontosaurids have been identified from the Huincul Formation; as noted above, ''Giganotosaurus'' itself is ironically not one of them.

* The entries for ''Velociraptor'' and ''Therizinosaurus'' poo-poo the idea of feathers for them (saying there's no actual proof) in a futile attempt to defend its scaly portrayals of the species. This would be a much, ''much'' tougher position to defend by the 2010s due to how much direct evidence of feathered coelurosaurs, of even large species, there is now. There is some debate, as mentioned at several points above, as to just how ''extensively'' feathered ''Therizinosaurus'' and other giant coelurosaurs would've been, but a total absence of feathers in even the largest genera is now considered very unlikely.

* There is increasing evidence that ''Australopithecus'' is not an ancestor of ''Homo'' at all, but a more vegetarian offshoot from a common ancestor, that eventually led to the specialist vegetarian genus ''Paranthropus''. The last common ancestor of ''Australopithecus'' and ''Homo'' might be ''Ardipithecus'' (named from fragmentary remains in 1995; a much more complete specimen, called "Ardi", was unveiled in 2009) or an even earlier genus like ''Sahelanthropus'' or ''Orrorin''. In any case, the adaptation to bipedalism appeared already in the primitive East African jungle and was unrelated to its clearing and transformation into savanna. "Next of Kin" (as in Next ''to our'' Kin) still makes for a great description of ''Australopithecus'', though.
** That said, the offshoot hypothesis still isn't universally agreed upon and there are some analyses that continue to recover ''Australopithecus'' as a ''Homo'' ancestor, so time will tell on whether the above example sticks.

* The entries for ''Velociraptor'' and ''Therizinosaurus'' poo-poo the idea of feathers for them (saying there's no actual proof) in a futile attempt to defend its scaly portrayals of the species. This would be a much, ''much'' tougher position to defend by the 2010s due to how much direct evidence of feathered coelurosaurs, of even large species, there is now.

* ''Postosuchus'' and ''Placerias'' are both depicted as sluggish and ungainly relics from a bygone age that are destined to be supplanted by the "superior" dinosaurs (not unlike how we used to view [[DumbDinos dinosaurs]] themselves back in the early to mid-20th century in relation to mammals), who are framed as being more versatile, fleet-footed and have the unique gift of bipedalism. Suffice to say, none of that is true, as all terrestrial Triassic tetrapods were just as agile, sophisticated, and well-adapted to their environment as early dinosaurs and most of them likely died out as a result of the [[https://en.wikipedia.org/wiki/Triassic%E2%80%93Jurassic_extinction_event Triassic-Jurassic mass extinction]], which also allowed dinosaurs to take over ([[HistoryRepeats in the same way mammals took over thanks to the K-T mass extinction]])[[note]]The narration by Creator/KennethBranagh does mention the Triassic-Jurassic extinction during the credits, mostly glossing over it by stating how the dinosaurs have continued to evolve[[/note]], and bipedalism wasn’t unique to dinosaurs, as several other contemporary archosaurs, such as rauisuchids (including ''Postosuchus''), proposaurids, and shuvosaurids were also bipedal and shared many other morphological similarities to true dinosaurs (the last of which looked [[https://en.wikipedia.org/wiki/Effigia#/media/File:Effigia_BW.jpg nigh-identical to dinosaur]] [[https://en.wikipedia.org/wiki/Shuvosaurus#/media/File:Shuvosaurus_BW.jpg to the untrained eye]]).