Jurassic Park Wiki

Segisaurus is an Early Jurassic meat-eater that seemed adapted for life in a dry, sandy environment. Though all early dinosaur predators had evolved to be quicker than the animals they replaced, scientists believe Segisaurus has features that made it extra fast.

The North American landscape where Segisaurus lived was very arid and sandy. This little dinosaur seemed to have features that would have made it well adapted to squatting down and sitting out a sandstorm. With only post-cranial remains, the exact look of this dinosaur is unknown.[1]

Wikipedia has a more detailed and comprehensive article on Segisaurus


Segisaurus map icon.

A Segisaurus‘ icon was located on a map of the Jurassic Park brochure, but the animal was never seen on-screen. On the map, the Segisaurus enclosure is located at the far southern end of the island where the tourist route does not connect. However, it is unknown if this enclosure was ever constructed.[2][3] Segisaurus was planned to be an attraction in Jurassic Park, with 48% of its genome being completed,[4] but sadly, this had to be put on hold due to the Isla Nublar Incident of 1993.

It is unknown what happened to the Segisaurus populations in 2018, but it is known that Segisaurus was subject to cruelty at some point in the past.[5]


  • The map logo of the Segisaurus features a skull. However, the only known Segisaurus skeleton does not have a skull.[6]
  • Segisaurus appeared on the Jurassic Park Institute website, in the Dinopedia section. The picture in the entry, and shown in the infobox on this page, is the only image of the Segisaurus in the entire franchise.


  1. 1.0 1.1 Jurassic Park Institute: Dinopedia. Retrieved from http://web.archive.org/web/20030803072549/http://www.jpinstitute.com:80/dinopedia/dinocards/dc_segisaurus.html
  2. The computer screens in the film don't show a "Segisaurus Paddock" (see image).
  3. Segisaurus does not appear in Jurassic World: The Game media: the brochure, Tour the Island website, InGen Field Guide or InGen Field Journal.
  4. InGen's Dinosaur Information guide leaked by DPG, page 4.
  5. DPG banner "Dinosaurs are mortal. Cruelty is timeless"
  6. Camp, C. (1936). "A new type of small bipedal dinosaur from the Navajo sandstone of Arizona." Univ. Calif. Publ., Bull. Dept. Geol. Sci., 24: 39-56.