‘Jurassic World Rebirth’: “Three Most Massive Dinosaurs” Species Revealed

in Movies & TV

L to R: Alan Grant (Sam Neill), John Hammond (Richard Attenborough), and Ellie Sattler (Laura Dern) looking up at the Brachiosaurus in 'Jurassic Park' (1993)

Credit: Universal Pictures

Jurassic World Rebirth (2025) is the seventh installment in the long-running series that started with Steven Spielberg’s iconic science fiction blockbuster, Jurassic Park (1993).

Jurassic Park & Jurassic World Expansions

Collectively, the Jurassic films have grossed over $6B worldwide, making it one of the biggest multi-media franchises of all time. Tie-in media includes comic books, novels, video games, and animated shows, with the latter two mediums showing no signs of stopping.

Fans looking to get their “dinosaur fix” more up, close, and personal, though, have Universal Studios’ Jurassic theme park attractions, which can be found at every resort around the world, with the likes of Jurassic World: The Ride and VelociCoaster being among them.

There are also “moving” attractions such as Jurassic World: The Exhibition, which houses jaw-dropping animatronics that put Universal Studios’ prehistoric inhabitants to shame in the same way the sequel’s dinosaurs fall short of the realism of those in the original film.

The T-Rex smashing through the Spinosaurus skeleton in 'Jurassic World'
Credit: Universal Studios

The Real Reason Behind the Franchise’s Success

While the Jurassic series is heavily populated with great human characters, whether it’s Robert Muldoon (Bob Peck), Lex Murphy (Ariana Richards), Dennis Nedry (Wayne Knight), or Owen Grady (Chris Pratt) — the dinosaurs are the real bread and butter of the franchise.

Since we first saw the towering Brachiosaurus in Jurassic Park — an experience we shared with an equally awe-struck Alan Grant (Sam Neill), Ellie Sattler (Laura Dern), and Ian Malcolm (Jeff Goldblum) — the demand for genetically-engineered prehistoric animals has been high.

And the sequels have all delivered. Though we’ve slowly become somewhat desensitized to the VFX over the years — perhaps because they don’t live up to the majesty of the first film — Jurassic has given us some show-stopping attractions that have been spared no expense.

The Mosasaur eating a Great White Shark in 'Jurassic World'
Credit: Universal Studios

Related: ‘Jurassic Park’ Releasing Official Never-Before-Seen Version of 1993 Film

Rebirth Will Have the Most Terrifying Dinosaurs

The likes of T-Rex, Velociraptor, and Dilophosaurus caused us many sleepless nights throughout the ’90s thanks to the first two Jurassic Park films, and the Jurassic World era gave us monstrous genetic dinosaur hybrids and the gigantic aquatic prehistoric reptile, Mosasaurus.

Now, the upcoming film, Jurassic World Rebirth, is set to continue with the trend of impressing audiences in new ways with InGen’s cloned dinosaurs. This time, however, things are about to get much bigger. In fact, we’re going to need a bigger movie theater screen.

Universal Pictures recently shared the official synopsis for Jurassic World Rebirth, along with two stills and a new logo. The lengthy blurb gives us a solid idea of what we can expect from the new film, while promising the three most terrifying dinosaurs yet.

Mahershala Ali as Duncan Kincaid holding a flare in 'Jurassic World Rebirth'
Credit: Universal Pictures

Jurassic World Rebirth Synopsis

But what makes these new dinosaurs more terrifying than the likes of the super-intelligent Velociraptors and the venom-spitting Dilophosaurus? Well, it’s their enormous size, as , the synopsis reveals that these are “the three most colossal creatures” to have ever existed.

“A new era is born,” the blurb begins.

“This action-packed new chapter sees an intrepid team racing to secure DNA samples from the three most colossal creatures across land, sea, and air. Five years after the events of Jurassic World Dominion, the planet’s ecology has proven inhospitable to dinosaurs. Those remaining exist in isolated equatorial environments with climates resembling the one in which they once thrived.”

It adds: “The three most colossal creatures within that tropical biosphere hold the key to a drug that will bring miraculous life-saving benefits to humankind. Academy Award® nominee [Scarlett] Johansson plays skilled covert operations expert Zora Bennett, contracted to lead a skilled team on a top-secret mission to secure genetical material from the world’s three most massive dinosaurs.”

“When Zora’s operation intersects with a civilian family whose boating expedition was capsized by marauding aquatic dinos, they all find themselves stranded on an island where they come face-to-face with a sinister, shocking discovery that’s been hidden from the world for decades.” But what species are these three “colossal creatures”?

Jonathan Bailey as Dr. Henry Loomis (L) and Scarlett Johansson as Zora Bennett (R) in 'Jurassic World Rebirth'
Credit: Universal Pictures

Related: Universal’s Jurassic Park Likely To Be Permanently Demolished in 2025

Three Biggest Dinosaurs Ever Revealed

Although it hasn’t been confirmed what species these three dinosaurs are, we’ve done our own digging. Paleontologically speaking, the three biggest dinosaurs that ever existed across “land, sea, and air” are the Patagotitan, Ichthyotitan severnensis, and Quetzalcoatlus, respectively — as it currently stands, that is, as the science is ever-changing.

Patagotitan

A genus of “titanosaurian sauropod dinosaur,” Patagotitan was an estimated 31m (102ft) in length, weighing in at an approximate 50–57 tonnes (55–63 short tons).

So far, this sauropod has yet to appear in the Jurassic films. However, several long-neck herbivores have already populated the series, such as Brachiosaurus (Jurassic Park, Jurassic Park III, Jurassic World, Fallen Kingdom), Apatosaurus (The Lost World, Dominion), and Dreadnoughtus (Dominion).

Ichthyotitan severnensis

While many believe that Megalodon was the biggest prehistoric marine creature of all time, with the super-sized ancestor of the modern Great White Shark coming in at an estimated maximum length of 20.3m (67ft), it may have been superseded by the more recently discovered Ichthyotitan severnensis, which is believed to have grown up to 26m (85ft) long.

Of course, Mosasaurus was also a gargantuan sea-dwelling creature. The prehistoric marine reptile was introduced in 2015’s Jurassic World and returned in the two sequels. As its size was exaggerated in those films, this may be one of Rebirth‘s three unnamed dinosaurs.

Quetzalcoatlus

As seen in Jurassic World Dominion (2022), Quetzalcoatlus is the largest flying prehistoric reptile to have ever existed. With a wingspan that exceeded 10m (33 ft) and a height of 3m (9.8ft) at the shoulder while in a bipedal stance, this was the mother of dino-birds.

In the 2022 sequel, the enormous bird attacks Kayla Watts’ plane in mid-air, causing it to crash into Biosyn Valley. An entire flock of these animals also appears during the prologue that premiered online before the film’s release (which is now part of the film’s extended cut).

Owen Grady (Chris Pratt) and Kayla Watts (DeWanda Wise) in a plane being attacked by a Quetzalcoatlus in the 'Jurassic World Dominion' trailer from Universal Pictures
Credit: Universal Studios

With all that said, paleontological science is constantly changing, and, as such, Jurassic World Rebirth‘s “three most colossal dinosaurs” may be based on already-outdated findings.

Whether or not Rebirth will even be “paleo-accurate” remains to be seen, as the franchise has taken liberties from the start. For instance, in real life, T-Rex’s vision wasn’t based on movement, Velociraptors weren’t 6ft tall, and Dilophosaurus didn’t sport frills or spit venom.

While this can be put down to genetic manipulation, inconsistencies have also been found outside of InGen’s fictitious science.

In the aforementioned Jurassic World Dominion prologue, which takes place 65 million years ago at the end of the Cretaceous Period, the T-Rex battles a Giganotosaurus, however, these two species were actually separated by approximately 23 million years of evolution. In other words, they never would have met!

According to an online rumor shared by entertainment industry insider MyTimeToShineHello (via ComicBookMovie.com), the three dinosaurs are Mosasaurus Titanosaurus (another giant sauropod), and Quetzalcoatlus. But this remains to be seen.

The primary Dinosaurs in Jurassic World: Rebirth are Mosasaurus Titanosaurus and Quetzalcoatlus

Jurassic World Rebirth Teaser

In addition to the new images and the synopsis, the film’s official logo has also been revealed in a short teaser. Check it out below per the official Jurassic World X (formerly Twitter) account:

Jurassic World Rebirth. In theaters July 2025.

Related: ‘Jurassic Park: Survival’ Trailer Breakdown

Directed by Gareth Edwards (2014’s Godzilla, Rogue One: A Star Wars Story), written by David Koepp (Jurassic Park, The Lost World: Jurassic Park), produced by Frank Marshall and Patrick Crowley (the Jurassic World trilogy), and executive-produced by Steven Spielberg, Jurassic World Rebirth will launch “a new Jurassic era” with an all-new cast.

The film stars Scarlett Johansson, Jonathan Bailey (Bridgerton), Manuel Garcia-Rulfo (The Lincoln Lawyer), Rupert Friend (Obi-Wan Kenobi), Mahershala Ali (The Green Book), Luna Blaise (Manifest), David Iacono (Dead Boy Detectives), Audrina Miranda (Lopez vs Lopez), Philippine Velge (Station Eleven), Bechir Sylvain (BMF), and Ed Skrein (Deadpool).

None of the actors from the previous films, such as Sam Neill (Alan Grant), Laura Dern (Ellie Sattler), Jeff Goldblum (Ian Malcolm), Bryce Dallas Howard (Claire Dearing), BD Wong (Henry Wu), and Isabella Sermon (Maisie Lockwood), are expected to reprise their roles.

When Can I Watch Jurassic World Rebirth?

Jurassic World Rebirth will be released in theaters worldwide on July 2, 2025.

Future Jurassic Park Projects

While it seems like the Jurassic World banner continues to dominate the franchise, an upcoming video game titled “Jurassic Park: Survival” (TBA) will act as a direct sequel to the beloved 1993 film by director Steven Spielberg, offering players the opportunity to explore “a fully realized Isla Nublar” just 24 hours after the events of the original classic.

Watch the trailer below from Jurassic World YouTube:

There’s no release date for “Jurassic Park: Survival.”

Other upcoming Jurassic installments include Jurassic World: Chaos Theory Season 2, which premiers on Netflix on October 17, and the video game sequel “Jurassic World Evolution 3”, which will be released sometime before May 2026.

What do you think the “three most massive dinosaurs” are in Jurassic World Rebirth? Let Inside the Magic know your thoughts in the comments down below!

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