Where: Fremont County, Wyoming (43.2° N, 109.0° W: paleocoordinates 12.2° N, 38.7° W)
• coordinate based on nearby landmark
• basin-level geographic resolution
When: Popo Agie Formation (Chugwater Group), Carnian (237.0 - 228.0 Ma)
• formation-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by Williston in 1904; reposited in the FMNH
• collected by Williston while at University of Chicago
Primary reference: S. W. Williston. 1904. Notice of some new reptiles from the Upper Trias of Wyoming. Journal of Geology 12:688-697 [R. Butler/R. Butler/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 91590: authorized by Richard Butler, entered by Richard Butler on 05.10.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Poposaurus gracilis2 Mehl 1915 archosaur FMNH UR 358, partial left ilium initially referred to Paleorhinus bransoni
| |
| |
Dolichobrachium gracile n. gen. n. sp.
Dolichobrachium gracile n. gen. n. sp. Williston 1904 reptile Scapulocoracoid, humerus, ribs and partial skull
|