Editor's Note: The following contains Jurassic World: Dominion spoilers.Just how many dino-sucking mosquitos did InGen get their hands on, anyway? Jurassic World: Dominion should have had enough on its hands, with dinosaurs loose in the world and an evil genetics company taking a page from Moses’ playbook against Egypt, but it introduced a few new species to the series’ roster anyway. Their appearances in the film won’t help you on a science test any more than any of the Jurassic films would, but as creatures in a narrative (or its separately-released prologue), they all do their part. Here’s a quick guide to the new saurian faces in the series, and a picture of what paleontology currently makes of them (dinosaurs only, though; sorry, Dimetrodon and Quetzalcoatlus):

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Atrociraptor

jurassic world dominion chris pratt Atrociraptor
Image via Universal Pictures

Velociraptor became a household name after playing the chief terror in the original Jurassic Park. With Dominion, other dromeosaurids are getting in on the act. The illicit dinosaur trade glimpsed Fallen Kingdom has not abated, and when Owen Grady (Chris Pratt) and Claire Dearing (Bryce Dallas Howard) land in Malta on the trail of their adopted daughter Maisie (Isabella Sermon), they run afoul of some dino smugglers. For their troubles, they have a pack of Atrociraptors set on their trail. These scaly bloodhounds, each bred with a color to match its name, tear after our heroes, and leave the city in mayhem. Well, them and all the other dinosaurs that get loose.

The real Atrociraptor lived in what is now Alberta, Canada, at around the same time that Tyrannosaurus rex roamed that territory. Its size, just like its distant cousin Velociraptor, was significantly exaggerated for film purposes; were you ever to encounter an Atrociraptor, you’d be dealing with something about knee height. It would have been covered in feathers, too. While Atrociraptor is not a well-described genus and has no known specimens with feather impressions, it’s a pretty safe bet that all dromaeosaurs sported full coats. I’d be cagier about betting that they came in designer colors, though. And there’s only limited evidence for pack hunting in dromaeosaurs in general, and none of it is specific to either Atrociraptor or Velociraptor. Not that that makes the prospect of a group of sickle-clawed reptiles charging after you any less thrilling in the movies when done right.

Dreadnoughtus

jurassic world dominion Dreadnoughtus
Image via Universal Pictures

The name Dreadnoughtus has been an easter egg throughout the Jurassic World films, but the Dominion prologue was the first time the Cretaceous sauropod made it before the cameras. The prologue opened with a group of Dreadnoughtus trudging through the mud. In the film itself, Alan Grant (Sam Neill) and Ellie Sattler (Laura Dern) catch a glimpse of the species while they investigate Biosyn’s nefarious doings, and a pair of them enjoy time in a lake at the end of the film. Theirs is a cameo role, but they certainly make for a stunning visual.

Of course, any animal around 85 feet long and two stories tall would probably take your breath away. Dreadnoughtus wasn’t the biggest dinosaur ever, but it’s among the contenders, and its relatively complete remains (a rarity for a sauropod) make estimates of its length and weight a bit more solid than some of its larger cousins. In life, it would have roamed what is now Argentina during the Late Cretaceous period.

Giganotosaurus

jurassic world dominion Giganotosaurus
Image via Universal Pictures

Given that director Colin Trevorrow described Giganotosaurus as “the Joker,” you might expect that it would function as the main antagonist, not scientists and locust plagues. As it is, the Southern Giant Lizard is engineered by Biosyn, kept near its sanctuary in Italy, and controlled with a chip in its brain – sort of a giant guard dog. It only really gets involved in the action once the compound goes up in flames. That’s apparently the best time for a Giganotosaurus to pursue human prey, at least until it faces challenges from a T. rex and a Therizinosaurus. The rex, Giganotosaurus handled on its own earlier in the film; up against two foes at once, it doesn’t last. I gotta tell ya, I’m not getting the Joker vibes.

A Giganotosaurus dueled and triumphed over a T. rex in the Dominion prologue too, an encounter that could never have happened in the Mesozoic era. Giganotosaurus lived in what is now Argentina, thousands of miles south of T. rex’s territory and millions of years earlier. Even if they could have fought, I wouldn’t have put money on Giganotosaurus. As silly as a “who would win in fight” argument can be, T. rex probably had better senses (particularly sight and smell), it may have been more maneuverable, and it had the strongest bite force of any land animal we know of. Giganotosaurus was well-evolved to be the apex predator of its time and environment, and it was technically bigger than T. rex, but it’s hard to imagine it having quite so easy a time dominating a fight without a screenwriter’s help.

Microceratus

jurassic world dominion Microceratus
Image via Universal Pictures

Mentioned in Jurassic World: Fallen Kingdom, Microceratus puts in an appearance (though not a significant plot contribution) with Dominion. This little guy barely stood above ankle height on us when it walked the earth – specifically, Asia – during the Cretaceous period. It was in the ceratopsian group, those beaked, frilled, and sometimes horned dinosaurs whose line ended with Triceratops. Microceratus didn’t have the weaponry of its later relative, but it did have the ability to walk on two legs.

Moros

jurassic world dominion moros
Image via Universal Pictures

Before the Giganotosaurus did for T. rex in the Dominion prologue, it enjoyed a tooth cleaning from another member of the tyrannosauroid clade: Moros intrepidus. This sort of behavior, not unlike the supposed symbiosis between modern plover birds and crocodiles, probably kept the Moros from becoming dinner, but it didn’t get its genetically engineered descendent much more than a walk-on in the film proper.

A real Moros would be about shoulder height and found around present-day Utah, a few million years before T. rex came along. It’s the earliest known Cretaceous tyrannosauroid to have lived in North America, and it’s the most recently described species to have made it into the Jurassic series; the paper that named Moros and examined its remains was only published in 2019.

Nasutoceratops

jurassic world dominion nasutoceratops
Image via Universal Pictures

Nasutoceratops had a big role to play in the “Battle at Big Rock” short leading up to Dominion. Here, they help get things rolling when a herd consisting of Nasutoceratops, Sinoceratops, and Triceratops inadvertently help Claire and members of her Dinosaur Protection Group escape from poachers. That cute little baby you’ve seen Ellie and Alan fawning over in promotional photos is also a Nasutoceratops.

Nasutoceratops means “large-nosed horn face,” and you can’t deny that’s an apt description. It had two large curved horns over its eyes, the longest of any in the centrosaur family, and a giant beak. In life, it would have lived alongside other ceratopsian dinosaurs, though not the two it herds with in Dominion; Sinoceratops lived at the same time but in another place, while Triceratops lived in the right place but in another time.

Pyroraptor

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Image via Universal Pictures

Dino-nerds who want their raptors feathered, rejoice: Dominon threw in a third dromaeosaur, Pyroraptor, and gave it a full set of wings. It shows up to make trouble for Owen and Kayla Watts (DeWanda Wise) as they try and rendezvous with Claire. If the feathers weren’t enough to throw the two for a loop, this raptor can swim, and fast. For all those distinguishing features, Pyroraptor proves less deadly than its cousin the Velociraptor had in previous films.

There’s no firm evidence for raptors swimming the way they do here, but it’s not out of the question, or a bad idea for a monster movie. But one Pyroraptor wouldn’t have been so intimidating as it looked here. This is one more raptor scaled up to work in the movies; the real deal stood at about knee height. You could have found them strutting about in France and Spain during the Cretaceous period.

Therizinosaurus

jurassic world dominion
Image via Universal Pictures

What’s the opposite of T. rex? If you went only by arm size, Therizinosaurus would be a strong candidate. One of the last of the group that bears its name, this 30-foot beast walked through Asia in the Cretaceous period, carrying giant arms that carried giant claws. The therizinosaurs were some of the few herbivorous non-avian theropod dinosaurs, and it’s suspected that their arms acted as rakes to pull food in towards its beak.

Therizinosaurus cuts a more sinister figure in Dominion than that diet would suggest. Biosyn’s blind specimen doesn’t take kindly to encroachment on its territory. Claire narrowly avoids getting chomped by it, and during the climax, the Giganotosaurus makes the mistake of confronting it. The Therizinosaurus holds it own against the carnivore, but it only takes it down with assistance from T. rex. I doubt two different dinosaur species could coordinate a plan to impale the enemy onto the therizinosaur’s claws – but that’s the movies for you.

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