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Note the dinosaurs. Both of them.

Doraemon: Nobita's New Dinosaur is a 2020 anime film, the 40th cinematic film of the Doraemon franchise and a loose remake of Doraemon: Nobita's Dinosaur.

Much like the original film, Nobita made another promise after being made fun of by Suneo and Gian during a dinosaur exhibition, that he will come up with a real-life dinosaur to impress them or else he will eat peanuts through his eyes. As luck would have it, Nobita did manage to locate a fossilized dinosaur egg, and with help from Doraemon's Time Cloth, reverts it to it's original state.

This time however, Nobita is the owner of two baby dinosaurs, a pair of twins hatched from the same egg belonging to an unknown feathered species that not even Doraemon's Complete Encyclopedia of Space have records of. Realizing he have discovered an entirely new dinosaur species, Nobita names them Kyu and Myu, intending to raise them into adulthood before showing them to his friends, but just like before, problems of raising a living dinosaur in modern-day Japan arises with their existence accidentally exposed to the public. Ultimately Nobita and gang decide to travel back to the Cretaceous Period to locate the ancestors of Kyu and Myu, but they're being followed by sinister entities who wants Kyu and Myu for reasons unknown.

The movie was originally planned for a March 6, 2020 release, but was postponed to August 7, 2020 because of the COVID-19 Pandemic. It was made available internationally in March 2021.


Doraemon: Nobita's New Dinosaur contain examples of:

  • All the Other Reindeer: When Kyu and Myu joins a flock of Nobisaurus after meeting their own kind for the first time, Myu is immediately accepted... but Kyu isn't. Because of Kyu's inability to glide, all his attempts to befriend the other Nobisaurus are turned away, with a particularly nasty member of the flock actually slashing Kyu across the face just for the sake of being a dick. Only when Kyu learns to fly in his own unique way does the flock finally accept him.
  • Anachronistic Animal:
    • While the film already features prehistoric animals from throughout the Late Cretaceous Period living together 66 million years ago, Tapejara and Repenomamus particularly stand out by being Early Cretaceous animals.
    • The gigantic pterosaur, which is of a fictious genus, has a mouthful of teeth. Toothed pterosaurs were extinct by the end of the Cretaceous.
    • Invoked when Suneo and Gian notice a monkey and bat in the Cretaceous, before both of those animals evolved. This is because both are actually the transformed Jill.
  • Animal Stampede:
    • Happens with a herd of Tuojiangosaurus when a Yangchuanosaurus arrives on the hunt. And it has a partner to boot.
    • The beginning of the K-Pg Extinction Event causes a multitude of various dinosaurs to stampede, as Gian and Suneo (riding on Cole and Top respectively) lead them to the Mass Teleportation circle drawn by Shizuka with the Time Displacement Crayon.
  • Art Shift: The Tarbosaurus that attacked the gang is rendered realistically in order to look menacing and dangerous, until Gian managed to throw the Tomodachi Chocolate into it's mouth, turning it into a cuddly-looking cartoonish animal. Later on two more realistic-looking dinosaurs, a Sinoceratops and a Titanosaurus, gets tamed respectively by Suneo and Doraemon, and quickly art-shifts to a more adorable-looking appearance as well.
  • Artistic License – Paleontology: Besides the obvious examples of Anachronism Stew, Misplaced Wildlife, and anatomical anomalies, Kyu is revealed to be the most recent common ancestor of modern birds that survived the Cretaceous extinction event. Not only he and the other Nobisaurus are too large for what the real-life evolutionary history of birds would suggest, but modern-type birds have already evolved during the Late Cretaceous. Still, the movie earns points for showing that birds are a surviving lineage of dinosaurs.
  • Bait-and-Switch: The movie opens with the gang in the middle of a prehistoric jungle, filled with dinosaurs, as if the audience is thrown rightaway into their adventure. And then Nobita gets spooked by a T. rex, causing the gang to laugh at him to be scared of an "animatronic"... revealing that they're actually in the middle of a dinosaur exhibition.
  • Battle Bolas: The Time Patrol use a futuristic version, fired from stun guns, to restrain Nobita by entangling him by the feet when Nobita insists on using the Stop Watch to prevent the meteorite from hitting earth and wiping out dinosaurs from existence.
  • Been There, Shaped History: Nobita was responsible for the evolution of modern birds, by finding and hatching the Nobisaurus egg that hatched into Kyu and Myu. After bringing the two back to their original time and the K-Pg Extinction Event starts, he motivates Kyu into succeeding at powered flight in order to save his life, therefore making an evolutionary breakthrough that will give rise to a new lineage of feathered dinosaurs that will survive to modern times.
  • Chekhov's Gun:
    • Early on when Doraemon runs through the Complete Encyclopedia of Space to check what species the newly-hatched Kyu and Myu belonged to, one of the holograms shown is Piisuke from Doraemon: Nobita's Dinosaur. And then Piisuke appears personally to rescue Nobita and Kyu from drowning in the Cretaceous Sea.
    • Arriving in the Jurassic Period, Nobita accidentally tripped and dropped the Breeding Diorama set - meant for containing Kyu and Myu during their journey - into a swamp. When they made it to the right time in the Cretaceous Period, it turns out the diorama set has increased in size as time passed until it's as large as a small island, now a sanctuary for several populations of dinosaurs.
  • Comically Missing the Point: When Sensei reveals that Nobita got a whooping 3% in his exams, Nobita's response is to happily exclaim he got more than 0% for once. Cue Nobita getting a scolding from Sensei as the whole class laughs.
  • Continuity Nod:
    • Mostly to Doraemon: Nobita's Dinosaur.
      • When Nobita made a Rash Promise and said he would "eat peanuts with his eyes for failing to find a live dinosaur", Shizuka made a sigh and comments, "Not again…" Not again indeed. Luckily, this time he manages to show them his dinosaurs before he has to bring them back to their original time period.
      • There's yet another Aerial Canyon Chase between the gang and various pterosaurs again, just like in the previous movie, although the chase here is mercifully shorter with the gang evading the pterosaurs by descending into the valley. Plus, the pterosaurs have no interest in the gang.
      • The Dinosaur Hunters are referenced via dialogue, by Time Police agent Jill when conversing with his boss Natalie.
    • For other movies, Luca's hat and a Moonbit doll can be seen in Nobita's bedroom.
  • Continuity Snarl: When Nobita made a claim that he'd retrieve a new dinosaur to his friends, Gian and Suneo then laughs at him, with Suneo saying dinosaurs couldn't possibly exist at the present after their extinction 66 million years ago. However, Piisuke's appearance reveals that the events of Nobita's Dinosaur did happen in the past and that this movie is actually a Stealth Sequel. Gian and Suneo did partake in the adventure of that earlier movie, as such their disbelief to Nobita's claims seems to contradict with previous events. The continuity between those movies are, to be honest, ridiculously loose. However, it should be noted that Nobita's Dinosaur is actually an extended adaptation of the manga chapter of the same name, which ended with Nobita and Doraemon returning Piisuke to Cretaceous Japan without a hitch; most likely, this movie could instead be a sequel to the original chapter rather than its movie adaptation.
  • Conspicuous CG:
    • The opening montage of prehistoric life, starting in a Paleozoic ocean and ending in a Cretaceous jungle (complete with a T. rex trying to Eat the Camera), is done by CG.
    • Dinosaurs from the Jurassic Period, including the Tuojiangosaurus herd the gang encounters and the Yangchuanosaurus that attacks Nobita and Kyu, are computer-generated, especially evident in their skin structure compared to Kyu and Myu.
    • The Pteranodon flock during the Aerial Canyon Chase scene. Said scene have CG clouds, thunderbolts and rain too.
    • Most untamed dinosaurs in large-scale crowd scenes, in general. Cole and Top have mostly-CG skin textures too, until they're tamed by the Tomodachi chocolate and are animated to appear more cartoonish.
  • The Cretaceous Is Always Doomed: The climax has a giant meteor hitting the Earth in the Yucatan Peninsula, triggering the K-Pg Extinction Event, and the gang must do their best to save the already-existing dinosaur population on the Breeding Diorama Set at all costs.
  • Darker and Edgier: The movie's tone and mood is a lot darker than Doraemon: Nobita's Dinosaur (which it is a remake of) as well as previous movies including Doraemon: Nobita's Chronicles of the Moon Exploration, Doraemon: Great Adventure in the Antarctic Kachi Kochi, and even the already-dark Doraemon: Nobita's Treasure Island note . The stakes at the end are much higher with the Time Patrol no longer allies (temporarily) and the gang witnesses the extinction-level event that made dinosaurs extinct, which the movie portrays with chiling realism. The entire gang, most notably Nobita himself goes through quite a bit of life-threatening dangers as well, even moreso than previous movies, while the trauma suffered by Kyu the outcast is milked for all the drama it's worth.
  • Darkest Hour: The meteor triggering the K-Pg Extinction Event has crashed into the Yucatan Peninsula, threatening to wipe out the Nobisaurus and all non-avian dinosaurs on the planet. Even worse, the Time Patrol monitoring the era is outright stopping them from preventing the upcoming tragedy.
  • The Dreaded: The gigantic toothed pterosaur is feared by both fellow pterosaurs and dinosaurs, including tyrannosaurs like Cole. Its very appearance invokes a Mass "Oh, Crap!" from the characters.
  • Elephant Graveyard: While searching for the origins of Kyu and Myu, Gian and Suneo - riding on Cole and Top - have to pass a dinosaur graveyard filled with bones. Suneo verbally expressed his worries, as always, but Gian tells him not to chicken out. And then they found Jill's hideout in the center of all those bones, afterwards Cole and Top see a monstrous pterosaur flying overhead.
  • Exact Eavesdropping: After Gian and Suneo escaped from their cell, they conveniently passes by Jill's quarters just as Jill is conversing with Natalie and realize they're actually Time Patrol members.
  • Exact Words: When Tamako asks Nobita if he had been sneaking stray animals into the house, after noting that the food in the refrigerator had started going missing, Nobita insists there are no stray puppies or kittens in his bedroom. But he didn't say a thing about the two dinosaurs he's been hiding.
  • Five Stages of Grief: Nobita goes through the first three stages (Denial, Anger, and Bargaining) upon learning there's nothing he can do - or allowed to do - to save the dinosaurs on the Breeding Diorama Island from the incoming extinction event. But before he can reach Depression, he is informed by Jill that he can save the dinosaurs on the island after all.
  • Foreboding Fleeing Flock: As the gang is flying through a canyon, they notice a large flock of Pteranodon heading straight for them, setting up for an Aerial Canyon Chase. But then Doraemon notices that the Pteranodon are not flying after them but past them, revealing that the pterosaurs themselves are fleeing from something. Sure enough there is a storm looming above, as is the shadowy outline of a massive pterosaur in the clouds.
  • Foreshadowing: Kyu frantically flaps his feathery arms when he tries to get airborne and drive the Time Patrol away from Nobita, something that is not seen in his sister or the other Nobisaurus. Guess how he successfully learns to fly?
  • Giant Flyer: Nobita and friends get menaced by an exceptionally huge pterosaur halfway through. Said pterosaur returns in the finale getting into Nobita's way when Nobita is trying to complete the chalk circle to postpone the destruction of the Diorama Breeding Island.
  • Good is Not Nice: The seemingly-sinister forces observing the gang upon their arrival? They're the Time Patrol, led by one Commander Natalie and her lackey, Jill, and they're actually on the side of good. Because they have a duty of upholding humanity's history to ensure time runs its course, right up to stopping the heroes from saving the dinosaurs because the extinction-level event in the Cretaceous Period needs to happen in order for the mammals to rise and therefore, humans to exist through evolution.
  • Gravity Is a Harsh Mistress: In one of Kyu's earlier attempts at getting airborne, he runs up a flight of tall steps leading to a spring board, jumps, spread his wings... and flaps about uselessly while fixed in mid-air for several seconds before falling down.
  • Half-Identical Twins: Kyu and Myu, despite belonging to different genders, look exactly identical to each other save for their colours. And that Myu has slightly longer feathers behind her ears while Kyu is smaller and has a shorter tail.
  • I Am Not Weasel: The Tuojiangosaurus, Yangchuanosaurus, Titanosaurus, Tarbosaurus, and Sinoceratops are mistaken for their better-known cousins (Stegosaurus, Allosaurus, Alamosaurus, Tyrannosaurus, and Triceratops respectively) by the gang. Doraemon does correct them about Tuojiangosaurus and Sinoceratops, though, pointing out they are relatives of Stegosaurus and Triceratops respectively.
  • Identical Grandson: Implied, although not outright stated: during the end credits, two birds are shown flying above the gang sans Doraemon, bearing identical colors and markings as Kyu and Myu, likely their descendants. Although this could be a symbolization that birds are dinosaurs.
  • Imprinting: Humorously inverted in one scene, where a parent Oviraptor mistakes one of Doraemon's Expedition Eggs as one of its own eggs.
  • Instantly Proven Wrong: Suneo and Gian jokes about the possibility of Nobita finding a real dinosaur fossil early on. Nobita then trips over the fossilized egg containing Kyu and Myu a handful of seconds later. Note that this doesn't happen in Doraemon: Nobita's Dinosaur, where Nobita found Piisuke's egg several days after making his Rash Promise.
  • Lost World: Searching for the lineage of Kyu and Myu, and narrowly avoiding death from drowning after being rescued by Piisuke, Nobita eventually ends up in a hidden dinosaur sanctuary, an island where a flock of Nobisaurus are living in. What's even better is that the island was created by none other than the Breeding Diorama Set Nobita lost while in the Jurassic Period.
  • Mass Teleportation: The film's climax have Nobita and friends using the Time Displacement Crayon to teleport various dinosaurs to the Diorama Breeding Set - a whole island populated by Nobisaurus.
  • Meek Mesozoic Mammal: As the gang trek through a Cretaceous forest, they come across a colony of Deltatheridium scampering across their path. However, Doraemon flees up a tree in terror at the sight of the small mammals, due to them resembling mice. Later, Doraemon encounters a Repenomamus, a larger mammal that preyed on small dinosaurs, that eats his piece of the Tomodachi Chocolate meant for Cole the Tarbosaurus, and it promptly flees when Cole comes their way.
  • Misplaced Wildlife: Most of the prehistoric animals are from Asia, but Spinosaurus is from Africa while Deinosuchus and Pteranodon are from North America. However, the Pteranodon may be justified in that they migrated, and the Spinosaurus could have swam there.
  • Mythology Gag:
    • It goes without saying a lot of ideas from Doraemon: Nobita's Dinosaur, which this movie is allegedly a remake of, gets repeated here. Like Piisuke, Kyu and Myu's egg is reverted using the Time Cloth and manually hatched by Nobita from inside his blanket, and Nobita making a rash bet at Suneo and Gian that he'd eat food using some facial organs other than his mouth (peanuts through his eyes this time rather than spaghetti through the nose) if he failed to procure an actual dinosaur. Nobita also faces hijinks of trying to hide two dinosaurs from his parents and difficulties in getting them to eat, and finally when Nobita owning a dinosaur is made public to all his friends, everyone then decide to help him by traveling to prehistoric times to find a home for Kyu and Myu.
    • The pterosaurs in the film's Aerial Canyon Chase are Pteranodon, just like in the original adaptation of Nobita's Dinosaur (before the 2006 remake changed them to Quetzalcoatlus). Unlike in the latter, however, the Pteranodon are not chasing after the gang but rather fleeing from an incoming storm and a much bigger pterosaur.
    • Nobita making a bet that "he'd eat peanuts with his eyes if he lose" is actually recycled from one of the manga stories, "Wolf's Den".
    • Kyu spends most of the film learning how to fly, and ultimately succeeds at the very end of the film, in direst times, similar to Gosuke from Doraemon: Nobita and the Winged Braves.
    • The Deus ex Machina at the ending plays out the same way as a previous movie, Doraemon: Nobita and the Knights on Dinosaurs, in which a gadget belonging to Doraemon – the Breeding Diorama Set – unintentionally becomes a prehistoric sanctuary for entire populations of dinosaurs. And both movies climaxes with the extinction-level event that wipes dinosaurs off the surface of earth, which Doraemon and friends are there to personally witness it while spending much of the climax saving as many dinosaurs of various races as possible.
  • No Antagonist: Due to the revelation that the alleged "antagonists", Commander Natalie and her agent, Jill, are actually members of the Time Police meant to ensure history runs it's course, the closest thing this film has to a main villain is either the meteorite about to hit earth in the Cretaceous Period or the giant pterosaur menacing the gang and the Nobisaurus.
  • Oddball in the Series: It does have quite a few oddities compared to other movies before it.
    • The absence of Yume o Kanaete Doraemon as it's theme song, for starters, or any other song at all. All post-2008 movies save for Doraemon: Nobita's Treasure Island featured this song in their credits, and while one could perceive it as Treasure Island starting a new trend, keep in mind Doraemon: Nobita's Chronicles of the Moon Exploration which is released between these two does feature said song.
    • The Time Police, for once, is depicted in a negative light, trying to prevent Nobita and friends from saving the dinosaur sanctuary to prevent history from going on a wrong path, a first in the entire franchise.
    • The fact that this is a direct sequel (albeit a loose one) to a previous Doraemon film, given Piisuke's presence, another first.
  • Oh, Crap!:
    • Gian, Suneo and Shizuka pay Nobita a visit, with Suneo bringing along a camcorder to record Nobita "eating peanuts with his eyes". And then they realize Nobita does, in fact, have a dinosaur in his room. Two dinosaurs, actually. Cue Gian and Suneo losing it, with Suneo telling Myu Gian tastes better. Thankfully Myu is more interested in eating Suneo's spilled peanuts.
    • Literally two minutes later, Doraemon and Nobita had this expression when they realize Kyu and Myu, hiding on the rooftop, has been spotted by the public.
    • Gian and Suneo follow Jill inside his hideout to his office. When they start arguing over who enters there first, Suneo feels something sniffing at him from behind and tells it to wait... then he and Gian turn around to see it's a Velociraptor. Two Velociraptor, actually. Cue the boys freaking out and fleeing from the raptors.
    • Doraemon and Shizuka have this reaction when they realize that the falling star and the following explosion they just witnessed was in fact a giant meteor falling to Earth and crashing into the Yucatan Peninsula, right when they are 66 million years ago. In other words, the K-Pg Extinction Event has begun. The rest of the gang follow suit, particularly Nobita when learning he's forbidden to do anything about it.
  • Overly-Long Gag: Nobita's early attempts in goading Kyu to eat assorted kinds of food, only for Kyu to turn away before Myu takes a bite. Again. Again. And again...
  • Perilous Prehistoric Seas: Nobita and Kyu fall into the Cretaceous sea while fleeing from the monstrous pterosaur and are approached by a pod of Futabasaurus as the two lose consciousness. However, the plesiosaurs mean no harm and one of them, who happens to be Piisuke, gives the pair a ride to dry land. Afterwards, we are treated to a scene where a Mosasaurus makes a snack out of a sea turtle, which a terrified Suneo witnesses while he and Gian are taken prisoner on Jill's ichthyosaur-shaped submarine.
  • Race Against the Clock: The film climaxes with the meteorite which caused the extinction of dinosaurs hitting the earth, and the gang must work together to send many dinosaurs to the Breeding Diorama Set before they're wiped out. With Nobita and Doraemon using the Spatial Movement Crayon to surround the island while Gian and Suneo, riding on Cole and Top, leads as many wild dinosaurs into the circle as possible.
  • Raptor Attack: Jill keeps a pair of Velociraptor that he apparently trained as guard animals. Suneo and Gian get attacked by the raptors while snooping around Jill's base, before Jill stuns the two dinosaurs. Later, Jill has the raptors guard the captured Gian and Suneo, only for Gian to use the Tomodachi Chocolate on them to break him and Suneo out. Interestingly, while the movie depicts these raptors as being more like Deinonychus as usual (though not to the extent of Jurassic Park), they are also coated in furry, bird-like feathers and have wings on their arms.
  • Real Event, Fictional Cause: Kyu turns out to be the common ancestor to modern birds, learning powered flight in order to save Nobita's life.
  • Reflective Eyes: Used in the scene where Kyu fails to glide after much training, and then Nobita, in order to motivae Kyu, repeatedly tries performing his backflip (which Nobita similarly failed during PE class), again and again, with Nobita's repeated stumbling reflecting into Kyu's eyes.
  • Screw Destiny: Defied and later played straight: although Jill and Natalie forbids Nobita and friends from saving their dinosaur comrades because of their worries on the impact this could lead to evolution in the future, Jill's gadgets however informs him the survival of the Nobisaurus is necessary because Kyu is the recent common ancestor to modern birds - without the Nobisaurus, the evolutionary history of birds will change drastically, and as such they'll have to turn around and let Nobita, Doraemon and friends to save the Nobisaurus alongside the other dinosaur and reptile populations - including Piisuke.
  • Secret Pet Plot: Nobita became the owner of two dinosaurs, a pair of twins he names Kyu and Myu. Like Pisuke before them, all kinds of hijinks and troubles ensues with Nobita's attempts to keep the two dinosaurs in his house and hiding them from his parents, but Mood Whiplash soon follows when Myu is spotted in public, on Nobita's rooftop.
  • Shadow Discretion Shot: The scene where one of the Yangchuanosaurus pair delivers the final blow to the Tuojiangosaurus is shown in shadow form.
  • Shout-Out:
    • When the gang are near a fossil excavation site, Suneo makes a joke about Nobita digging up fossilized poop.
    • The Sinoceratops in this film are clearly modeled after Jurassic World: Fallen Kingdom, down to the coloring and having a hole in their fenestrae. Likewise, the Mosasaurus resembles the one from the Jurassic World trilogy.
    • The Velociraptor in the movie share similar color schemes as the Hesperonychus in Walking with Dinosaurs.
    • Towards the end of the film is a homage to Dinosaur, in which Nobita and Kyu have a tender moment on a ledge with a tree before they and everyone else watch a giant meteor fall in the far distance from the island.
    • During the gang's accidental visit to the Jurassic, a Yangchuanosaurus bites onto the neck of a Tuojiangosaurus only to be hit by the latter's thagomizer or spiked tail, similar to the Tyrannosaurus and Stegosaurus battle from the "Rite of Spring" sequence of Fantasia. Like the Stegosaurus, the Tuojiangosaurus ends up losing the battle (albeit to a second Yangchuanosaurus).
  • Shown Their Work:
    • The film prominently features feathered dinosaurs, with almost all the maniraptoriformsnote  being coated in plumage. The fact that birds are dinosaurs themselves becomes a major plot point. Particularly, the short-tailed Kyu gains the ability to fly by flapping his wings, which Jill recognizes as how dinosaurs learned to fly and gave rise to birds. Indeed, one of the theories on how birds achieved powered flight is that their winged theropod ancestors started flapping to right themselves when they fell, and developed shorter tails to make their bodies lighter.
    • While not entirely geographically or temporally accurate, almost all of the Jurassic and Cretaceous dinosaurs featured in the film are at least discovered in Asia, with the exception of Spinosaurus (and even then, it could be justified by Spinosaurus being able to swim).
    • Stegosaurs, sauropods and ceratopsians have the correct foot shapes, rather than elephant-like feet as in usual portrayals.
    • Spinosaurus is depicted as semi-aquatic, with short legs and a dip in the sail. It would have been the most accurate depiction of the animal in films, if it weren't for the fact its tail became obsolete sometime after the film's completion.
    • Hadrosaurs are depicted as quadrupeds (although the juveniles are depicted as bipedal, which is based on an outdated hypothesis).
    • Oviraptor is shown brooding its eggs, based on the holotype specimen that was sitting on its own nest of eggs (and mistaken for an egg thief, hence how Oviraptor got its name).
    • Tuojiangosaurus is depicted with a third pair of spikes at the end of the tail much like its relative Chungkingosaurus, since the thagomizer of Tuojiangosaurus itself is unknown.note 
    • Tarchia is depicted with a low, rounded body with osteoderms set into thick skin, lacking the bony shell seen in stereotypical depictions of ankylosaurs.
    • Tapejara is correctly shown with a more subdued crest on its snout, rather than the Tupandactylus-like crest seen in obsolete reconstructions.
    • While the gigantic pterosaur is a fictional genus, it is correctly depicted as having pycnofibres, walking quadrupedally, hunting on the ground like an azhdarchid, and taking off by vaulting with its wings. Also, the tracks it leaves behind are based on real-life fossils of pterosaur tracks.
    • To this day, it is a popular, but outdated belief that the Mesozoic Era ended 65 million years ago. This film instead shows it ending 66 million years ago according to modern theory. Doraemon's description of the K-Pg Extinction Event is also horrifyingly accurate, with the meteor impact not only sending a blast radius obliterating everything in its path but afterwards kicking up thick clouds of dust that would block the whole Earth from sunlight, causing global cooling and a worldwide destruction of the food chain that would last for millennia.
    • The opening has a demonstration of evolution as not Evolutionary Levels leading to a specific goal, but rather a series of offshoots from the same animal. This is represented by a ray of light that goes through a transitional form and splits into branches to show the different lineages that came from that animal, with one branch repeating this process with the next transitional form (in this case, leading to the dinosaur lineage).
    • What causes the gang to realize they're in the Jurassic Period is that they encounter stegosaurs alongside allosaurs (in this case, Tuojiangosaurus alongside Yangchuanosaurus), both groups that were prominent during the Jurassic, but died out before the end of the Cretaceous.
    • Grass or grass-like plants are shown in the scenes set in Late Cretaceous Asia. Grass first evolved in Asia during the Late Cretaceous, but are yet to spread elsewhere. By contrast, the scenery in the Jurassic show a lack of grass or flowering plants, which are yet to evolve at the time, instead showing moss and ferns covering the ground.
    • During their brief stint in the Jurassic Period, the gang witnesses a realistic confrontation between carnivore and herbivore, and the necessity of hunting in groups or pairs. In a one-on-one battle, the Tuojiangosaurus quickly overpowers the Yangchuanosaurus with its defenses, but if the Yangchuanosaurus is paired with another one, the Tuojiangosaurus itself gets quickly overwhelmed and taken down. Likewise, one of the Yangchuanosaurus purposely causes the herd to stampede while the other hides in ambush for a straggler, exactly how cooperative hunting works in nature.
  • Stealth Sequel: The movie is promoted as a remake of the manga chapter "Nobita's Dinosaur", which was adapted into the first Doraemon film, Doraemon: Nobita's Dinosaur, with Nobita raising two dinosaurs instead of one. In a hologram early on the film, Piisuke the Futubasaurus from the previous film can be seen, which audiences dismissed as a Continuity Cameo. But halfway through when Nobita and Kyu nearly drowns in the Cretaceous Sea, Piisuke personally appears and saves them, confirming that yes, that chapter did happen. Piisuke had another cameo before the end credits as one of the random background dinosaurs on Nobisaurus Island.
  • Surprisingly Realistic Outcome: The major dilemma from the previous film, Doraemon: Nobita's Dinosaur, ends when Piisuke found a herd of wild Futubasaurus and is instantly accepted into his own kind. It doesn't happen here when the gang managed to locate one of the last flocks of Nobisaurus in the Cretaceous Period. While they accept Myu just fine, the flock outright rejects Kyu due to his inability of gliding, with the film spending a huge chunk of time having Kyu learning to get airborne eventually succeeding right at the final act.
  • Talk to the Fist: In typical Gian manner - while sneaking around Jill's laboratory, Gian and Suneo discussed which colour are associated with leaders to determine who's leading the way. Suneo tries saying Gian (who's wearing orange) couldn't be in charge, since leaders usually wears red - cue Gian beating up Suneo and telling him to move on.
    Gian: "DON'T. BRING. UP. ORANGE."
  • Tastes Like Friendship: What the effect of the Tomodachi (friendship) Chocolate manifests as. Any stray animals who fed on the chocolate will take an instant liking to the feeder, with Gian and Suneo, being envious of Nobita having Kyu and Myu, decide to tame two dinosaurs for themselves as well, respectively Cole the Tarbosaurus and Top the Sinoceratops. Amusingly, Doraemon briefly tames a Repenomamus after it eats the chocolate that meant for Cole.
  • The Unmasqued World: Nobita's attempts to hide Kyu and Myu from his mother backfires big time when he tries using the Spatial Movement Crayon to teleport them out of his bedroom… onto the rooftop, where the two live dinosaurs are then exposed to dozens and dozens of citizens in the streets.
  • Vomit Indiscretion Shot: The scene where Kyu throws up in his cot when he gets sick.
  • Wham Shot:
    • Everyone on Nobisaurus Island watches an asteroid crashing into the distance with a massive explosion, and then the ground starts shaking with volcanoes erupting in the distance and more fiery rocks falling from the sky. The K-Pg Extinction Event has begun.
    • Gian and Suneo showing everyone that Nobisaurus Island is, in fact, the Breeding Diorama Set that Nobita lost during the Jurassic Period.
    • Kyu finally learning to fly by flapping his wings, revealing that he is the recent common ancestor of modern birds.
  • You Can't Fight Fate: Enforced - the Time Patrol outright forbids changes to the past, including and especially preventing extinction of dinosaurs, or else the subsequent ripple effect would result in mammals being unable to become the dominant land animals, therefore affecting existence of humans as a whole.

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