Pit 12, Peabody Coal Co., Grundy County (Carboniferous of the United States)

Where: Grundy County, Indiana (41.2° N, 88.2° W: paleocoordinates 5.4° S, 23.9° W)

When: Carbondale Formation, Moscovian (315.2 - 307.0 Ma)

• Excello shale (equivalents: black shale over coal IV-A, Indiana; black shale over coal IV, Illinois), Carbondale formation, Des Moines series, Westphalian lower D, Pennsylvanian.

Environment/lithology: marine; shale

Size class: macrofossils

Collected by G.R. Case; reposited in the FMNH

Primary reference: R. Zangerl and G. R. Case. 1973. Iniopterygia, a New Order of Chondrichthyan Fishes from the Pennsylvanian of North America. Fieldiana Geology Memoirs 6:1-67 [M. Clapham/P. Vazquez/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132184: authorized by Matthew Clapham, entered by Priscilla Vazquez on 09.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Iniopterygia - Sibyrhynchidae
Sibyrhynchus denisoni Zangerl and Case 1973 cartilaginous fish