Where: Wyoming (44.2° N, 106.7° W: paleocoordinates 10.6° S, 68.2° W)
• outcrop-level geographic resolution
When: Bighorn Formation, Blackriveran to Blackriveran (460.9 - 443.7 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; dolomite and sandstone
Sandstone is both hard and soft, fine-, medium-, and coarse-grained, thin bedded.
There is red quartzite near the base of the bed.
Collection methods: chemical,
• All organisms in this collection are conodonts.
Primary reference: T. W. Amsden and A. K. Miller. 1942. Ordovician Conodonts from the Bighorn Mountains of Wyoming. Journal of Paleontology 16(30022):301-306 [S. Holland/T. Hanson] more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 10442: authorized by Steven Holland, entered by Tori Hanson on 16.04.2001