1205-base (Ordovician of the United States)

Where: Bonneville, Madison, Teton County, Idaho (43.7° N, 111.3° W: paleocoordinates 7.9° S, 70.0° W)

• local area-level geographic resolution

When: Bighorn Dolomite Formation, Late/Upper Ordovician (458.4 - 443.4 Ma)

Environment/lithology: marine; lithified, fine-grained, gray dolomite

• Dolomite, gray (weathers very light gray or white), fine-grained, thick-bedded slightly calcareous.

Size classes: macrofossils, mesofossils

Primary reference: M. H. Staatz and H. F. Albee. 1966. Geology of the Garns Mountain Quadrangle Bonneville, Madison, and Teton Counties, Idaho. United States Geological Survey Bulletin (1205) [A. Zaffos/E. Ito]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 184602: authorized by Andrew Zaffos, entered by Erika Ito on 13.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Cryptostomida -