04-BRB-C (Ordovician of the United States)

Where: Butler County, Ohio (39.5° N, 84.3° W: paleocoordinates 25.5° S, 57.8° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Amorphognathus superbus conodont zone, Oregonia Formation, Richmondian (449.5 - 443.7 Ma)

• C4 sequence

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, bioturbated, phosphatic, shelly/skeletal, gray packstone and lithified, gray mudstone

Size class: macrofossils

Preservation: mold/impression, original calcite, replaced with calcite

Primary reference: S. M. Holland and M.E. Patzkowsky. 2007. Gradient ecology of a biotic invasion: biofacies of the type Cincinnatian Series (Upper Ordovician), Cincinnati, Ohio region, USA. Palaios 22:408-423 [S. Holland/S. Holland]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 72924: authorized by Steven Holland, entered by Steven Holland on 04.06.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

 Phacopida - Calymenidae
Flexicalymene meeki Foerste 1910 trilobite
 Strophomenida - Rafinesquinidae
 Atrypida - Anazygidae
 Orthida - Plaesiomyidae
 Myalinida - Ambonychiidae
Ambonychia sp. Hall 1847 clam
 Trepostomata -
Trepostomata indet. Ulrich 1882