From Wikipedia, the free encyclopedia
Jump to: navigation, search
Temporal range: Early - Middle Triassic, Anisian–Olenekian
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Protorosauria
Genus: Jesairosaurus
Jalil, 1997
Species: J. lehmani
Binomial name
Jesairosaurus lehmani
Jalil, 1997

Jesairosaurus is an extinct genus of prolacertiform archosauromorph known from Illizi Province of Algeria.[1]


Jesairosaurus is known from the holotype ZAR 6, articulated and three-dimensionally preserved skull and pectoral girdle and from nine paratypes including ZAR 7-8, two skulls and two postcranial skeletons, ZAR 9, a skull and ZAR 10-15, postcrania. It was collected in the Gour Laoud, locality 5003 from the base of lower sandstones of the Lower Zarzaïtine Formation of Zarzaïtine Series, dating to the Anisian-Olenekian stages of the Early to the Middle Triassic. Jesairosaurus is most closely related to Malerisaurus langstoni according to its original description.[1]


Jesairosaurus was named by Nour-Eddine Jalil in 1997 and the type species is Jesairosaurus lehmani. The specific name honors J.-P. Lehman for describing for the first time vertebrate material from the Triassic of Algeria.[1]


  1. ^ a b c Nour-Eddine Jalil (1997). "A new prolacertiform diapsid from the Triassic of North Africa and the interrelationships of the Prolacertiformes". Journal of Vertebrate Paleontology. 17 (3): 506–525. JSTOR 4523832. doi:10.1080/02724634.1997.10010998.