Opisthias
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| Opisthias Temporal range: Late Jurassic | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Reptilia |
| Subclass: | Diapsida |
| Infraclass: | Lepidosauria |
| Order: | Sphenodontia |
| (unranked): | Opisthodontia † |
| Genus: | Opisthias † |
| Species | |
| |
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]
Distribution
Opisthias was from the 
United States (Colorado, Utah, and Wyoming).[1]
See also
References
- ↑ 1.0 1.1 http://paleobackup.nceas.ucsb.edu:8090/cgi-bin/bridge.pl
- ↑ 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.
- ↑ 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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