about 3 miles southwest of Bessemer (Cambrian of the United States)

Where: Jefferson County, Alabama (33.4° N, 87.0° W: paleocoordinates 27.1° S, 90.1° W)

• coordinate estimated from map

When: Copper Ridge Formation, Trempealeauan (501.0 - 485.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: cherty/siliceous dolomite

Size classes: macrofossils, mesofossils

Preservation: recrystallized, original aragonite

Primary reference: E. O. Ulrich, A. F. Foerste, and A.K. Miller. 1943. Ozarkian and Canadian cephalopods. Part II, Brevicones. Geological Society of America Special Papers 49:1-240 [P. Wagner/P. Wagner/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189397: authorized by Björn Kröger, entered by Björn Kröger on 16.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list