ammonites
Corals of Brassfield Fm, mid - Llandovery, 21 - Patzkowsky (Silurian of the United States)

Where: Switzerland County, Indiana (38.9° N, 85.2° W: paleocoordinates 26.1° S, 54.1° W)

• outcrop-level geographic resolution

When: Brassfield Formation, Llandovery (443.7 - 428.2 Ma)

Environment/lithology: shallow subtidallithified and lithified dolomite

• Mostly limestone, some dolomite.

Size class: macrofossils

Primary reference: R. S. Laub. 1979. The corals of the Brassfield Formation (mid-Llandovery, Lower Silurian) in the Cincinnati Arch Region. Bulletins of American Paleontology 75(305):1-457 [M. Patzkowsky/Z. Krug] more details

PaleoDB collection 13207: authorized by Mark Patzkowsky, entered by Zack Krug on 29.01.2002