Where: Franklin County, Iowa (42.7° N, 93.3° W: paleocoordinates 25.0° S, 37.8° W)

When: Sheffield Formation (Yellow Springs Group), Famennian (372.2 - 358.9 Ma)

• triangularis to Early crepida

Environment/lithology: marine

Reposited in the CM

Primary reference: A. L. Rode and B. S. Lieberman. 2004. Using GIS to unlock the interactions between biogeography, environment, and evolution in middle and Late Devonian brachiopods and bivalves. Palaeogeography, Palaeoclimatology, Palaeoecology 211(3-4):345-359 [A. Stigall/A. Stigall/A. Stigall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55184: authorized by Alycia Stigall, entered by Alycia Stigall on 27.09.2005

Creative Commons license: CC BY (attribution)