Torosaurus

Torosaurus was a large ceratopsid dinosaur. Its name means "perforated lizard", although often incorrectly interpreted as "bull lizard". It very much resembled its cousin Triceratops, but had a much longer frill, with two large holes (or fenestrae). Many paleontologists now believe Torosaurus wasn't a distinct genus of dinosaur, but instead a Triceratops in its most mature stage. One refutable objection to this theory is that Torosaurus had the aforementioned fenestrae in its frill, unlike Triceratops. Torosaurus may have lived in herds, like many of its relatives, but experts are not sure, since no fossils have been found in large numbers. It was long thought to have the largest skull of any animal in history, but it seems in recent years that Pentaceratops has topped its record.

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Story
In the movie canon, Torosaurus is the adult form of Triceratops as revealed from Dr. Laura Sorkin's research on Jurassic Park's Triceratops herd.


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Jurassic Park III: Park Builder
It is No.100 of the Herbivore Threes that can be created in Jurassic Park III: Park Builder.

Jurassic Park: Explorer
Torosaurus appeared in Jurassic Park: Explorer.

Jurassic Park: Operation Genesis
see Torosaurus/Operation Genesis

In Jurassic Park: Operation Genesis, Torosaurus is featured as a two-star large herbivore. It is much more docile than Triceratops but still uses its horns defensively. They are much more territorial than Triceratops, and will rut with each other in competition for dominance of the herd. It will occasionally attack Land Cruisers, albeit much less often than its larger, more aggressive cousin. They're capable of fighting all large and small carnivorous dinosaurs, but they usually attack small carnivores and avoid large ones.

Jurassic Park: Builder
see Torosaurus/Builder

Torosaurus is one of the available dinosaurs in Jurassic Park: Builder. In the mission Surprising Find Alan Grant will ask you to create a Torosaurus. Alan Grant says he hasn't seen a Torosaurus fossil since his student textbook, so he never thought of seeing one in the park.

Behind the scenes
Torosaurus being a mature form of Triceratops in the film canon is an allusion to Jack Horner's research in 2009.