Warning: This article contains significant spoilers for Jurassic World: Chaos Theory Season 3.
Overview of Jurassic World: Chaos Theory
Jurassic World: Chaos Theory, the latest series from Netflix, features a multitude of dinosaurs, combining familiar faces with exciting new additions. Since Steven Spielberg adapted Michael Crichton’s novel “Jurassic Park,” the franchise has blossomed, generating billions in revenue. While the cinematic universe often dominates discussions, Netflix’s efforts like Jurassic World: Camp Cretaceous and Jurassic World: Chaos Theory have also found their place.
The animated series tracks six teenagers trapped on Isla Nublar, a haven for dinosaurs. Unlike its predecessor, Chaos Theory introduces the titular island’s creatures to a more global setting, mirroring the adventures in the Jurassic World film trilogy. Spanning three continents, this series showcases an impressive range of dinosaur species, enhancing both the storyline and viewer engagement.
While “dinosaur” refers specifically to extinct reptiles from the Mesozoic era, this article takes a more relaxed perspective on the term for ease of discussion.
1. Allosaurus
The Primary Antagonist of Season 1

In the first season of Jurassic World: Chaos Theory, a half-blind Allosaurus is presumed responsible for Brooklynn’s supposed demise. Darius dedicates his efforts to hunting this dinosaur, unaware that the actual threat stems from Atrociraptors dispatched to eliminate her. The series cleverly leads viewers to suspect the Allosaurus took Brooklynn’s arm, only for it to be Ghost—the notorious raptor—who is responsible.
This same Allosaurus resurfaces in Season 3, Episode 9, titled “Active Pursuit,” this time roaming Malta. Some fans speculate it may be the same dinosaur seen in the short film Battle at Big Rock, identifiable by its distinct facial markings, although this theory remains unverified.
2. Ankylosaurus
Bonds Formed with Two Ankylosauruses

Appearing in every feature film except for the original Jurassic Park, Ankylosaurus adds continuity to the franchise. Two specific Ankylosaurus characters, Bumpy and Smoothie, enhance the emotional landscape of Chaos Theory. Initially introduced in Camp Cretaceous, Bumpy is shown raising a family on Sammy’s farm where her pregnancy causes concern among characters—only to reveal the joyous news of her impending motherhood.
In a heartening twist, Season 3 introduces Smoothie, Bumpy’s hatchling. Kenji assumes a protective role, ensuring the little ankylosaur is well cared for, showcasing themes of friendship and guardianship.
3. Apatosaurus
Incorporated into the DPW Symbol

While Apatosaurus doesn’t actively appear in the storyline, it is featured in a significant way as part of the Department of Prehistoric Wildlife’s emblem, which can be spotted on various vehicles and uniforms throughout the series.
4. Archeopteryx
Featured in Gia’s Educational Book

As the Nublar Six and Gia explore their surroundings, they encounter a feather from a dinosaur, prompting them to investigate feathered species. In Season 3, Gia references Archeopteryx from her book as a potential match, although they ultimately find this lead inconclusive.
5. Atrociraptor
Key Weapons for The Broker

Initially introduced in Jurassic World Dominion, Atrociraptors feature prominently in Chaos Theory, showing their evolution from fierce predators to loyal minions under The Handler’s command. As “designer dinosaurs,” their backstory unfolds, revealing how they were bred and molded for aggression. Their fierce loyalty remains unwavering, even as tensions with their handler grow.
6. Baryonyx
Brief Appearances Throughout the Series

The Baryonyx is represented in Chaos Theory through its traditional form in select scenes during Season 1 and Season 2, highlighting its transport within illegal trades linked to the DPW.
7. Becklespinax
Predators Create Chaos on the Island

The Becklespinax, a fresh addition to the franchise, is introduced as two aggressive predators unleashed by Santos to wreak havoc on Dinosaur Danger-Free Island. Their menacing pursuit of main characters solidifies them as formidable forces, capable of creating intense and chaotic situations.
8. Brachiosaurus
Gentle Giants of the Jurassic World

These gentle giants, known for their towering necks, make cameo appearances in Chaos Theory. Their serene presence provides much-needed calm amidst the chaos and reinforces the notion that not all dinosaurs are threats to humans.
9. Carnotaurus
A Fiery Presence in the Series

Initially featured as a holographic entity, the Carnotaurus makes a dramatic live appearance by the end of Seasons 1 and 3, showcasing its raw power and unpredictability through a series of chaotic events.
10. Ceratosaurus

A notable creature within the series, the Ceratosaurus makes a brief yet impactful cameo in the final season, underscoring its place within the Jurassic franchise.
11. Compsognathus
Cuteness Amidst Danger

Appearing for the first time in Chaos Theory, Compsognathus delights audiences with its smaller stature and quirky antics, establishing a blend of humor and cuteness in the series—a refreshing contrast to the more menacing dinosaurs.
12. Dimorphodon
Threats from the Skies

The illegal breeding of Dimorphodon adds a dimension of peril in the series, introducing aerial threats that challenge the protagonists and escalate the stakes.
13. Gallimimus
A Loving Connection with Geba

Gallimimus serves as an engaging addition to the storyline, with a special emphasis on a particular character named Geba. Their interactions illustrate themes of connection and loyalty, emphasizing the emotional narratives within the chaos.
14. Kentrosaurus
A Quest for Food

Bringing humor and relatable depictions of survival, the Kentrosaurus faces challenges as they forage for food, demonstrating the balance of life for dinosaurs within their ecosystem.
15. Leucistic Baryonyx
Unusual Adaptations

This peculiar variant of Baryonyx, bred for blindness with enhanced echolocation abilities, poses unique challenges throughout the series as its hunting methods starkly contrast the typical predatory behavior showcased in the franchise.
16. Lystrosaurus
Featured in Both Chaos Theory and Dominion

The Lystrosaurus makes a significant appearance, connecting the narrative threads between Chaos Theory and Jurassic World Dominion, reinforcing thematic continuity in the portrayal of these prehistoric creatures.
17. Majungasaurus
A Cannibalistic Character

Majungasaurus’s cannibalistic tendencies introduce darker elements to the storyline, showcasing the brutal realities of dinosaur existence and survival.
18. Monolophosaurus
Status Remains Uncertain

The fate of two Monolophosauruses, entangled in a cloning plot, adds intrigue to the narrative as their resolve remains ambiguous, culminating in cliffhangers and unresolved storylines.
19. Nasutoceratops
Into a Dangerous Predicament

Nasutoceratops briefly appears in Season 1, showcasing human-dinosaur interactions that reveal the complexities of coexistence while navigating threats from their surrounding environment.
20. Pachyrhinosaurus
Darius Calms the Situation

The Pachyrhinosaurus showcases the duality of dinosaur presence in the series, highlighting vulnerabilities alongside physical strength, blending action with emotion as characters move to protect these creatures.