Opisthias

Opisthias is a Late Jurassic genus of sphenodont reptile from the Morrison Formation of western North America,[2] present in stratigraphic zones 2 and 4–6.[3], An indeterminate species is also known from the Lulworth Formation of the UK.

Opisthias
Temporal range: Late Jurassic
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Superorder:
Lepidosauria
Order:
Sphenodontia
(unranked):
†Opisthodontia
Genus:
†Opisthias
Species
  • O. rarus † (type) Gilmore, 1905[1]

Distribution

Opisthias was from the United States (Colorado, Utah, and Wyoming).[1], as well as in southern England.

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See also

References
  1. "Archived copy". Archived from the original on 2010-03-06. Retrieved 2010-03-03.CS1 maint: archived copy as title (link)
  2. Foster, J. (2007). "Table 2.1: Fossil Vertebrates of the Morrison Formation." Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. pp. 58-59.
  3. Foster, J. (2007). "Appendix." Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. pp. 327-329.


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