ammonites
Richmond, Whitewater Fm., Wayne Co., Indiana (Ordovician of the United States)

Where: Wayne County, Indiana (39.8° N, 84.9° W: paleocoordinates 25.0° S, 58.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Whitewater Formation, Richmondian (449.5 - 443.7 Ma)

• "Richmondian"

Environment/lithology: reef rocks

• "9 cm thick trepostomic bafflestone, locally oncolitic. BA2"

Primary reference: J. J. Sepkoski Jr. 1998. Rates of speciation in the fossil record. Philosophical Transaction of the Royal Society Biological Sciences 353(1366):315-326 [J. Sepkoski/M. Sommers/A. Clement] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 373: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Torsten Liebrecht and Pete Wagner