Also known as Sando et al. Little Popo Agie Canyon Loc.38
Where: Fremont County, Wyoming (42.6° N, 108.7° W: paleocoordinates 0.8° N, 39.5° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Anthracospirifer welleri - shawi zone, Horseshoe Member (Amsden Formation), Chesterian to Chesterian (339.4 - 314.6 Ma)
• Float from middle part of Amsden Fm. "Composita popopsiensis subzone? Late Mississippian (Chesterian)."
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; lithified, red, silty, sandy, calcareous shale and gypsiferous, shelly/skeletal limestone
Reposited in the USGS
• "Collected by L.G. Henbest and others, 1948."
Primary reference: W. J. Sando, M., J.r. Gordon, and J. T. Dutro. 1975. Stratigraphy and geologic history of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming. United States Geological Survey Professional Paper 848A:1-83 [J. Alroy/M. Sommers/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 5711: authorized by John Alroy, entered by Mike Sommers on 17.11.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Barytichisma amsdenense horn coral | |
Lingulata | |
Orbiculoidea wyomingensis Branson and Greger 1918 | |
Rhynchonellata | |
| |
Composita sulcata Weller 1914 | |
Pugnoides quinqueplecis Easton 1962 |