Louisville, Atchison shale (Carboniferous of the United States)

Where: Cass County, Nebraska (41.0° N, 96.2° W: paleocoordinates 0.9° S, 27.7° W)

When: Kasimovian (307.0 - 303.7 Ma)

• Atchison shale

Environment/lithology: marine; shale

Size class: macrofossils

Primary reference: C. R. Eastman. 1903. Carboniferous fishes from the central western States. Bulletin of the Museum of Comparative Zoology 39:163-226 [M. Clapham/P. Vazquez/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133265: authorized by Matthew Clapham, entered by Priscilla Vazquez on 08.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Ctenacanthiformes - Ctenacanthidae
Ctenacanthus amblyxiphias Cope 1891 elasmobranch
 Eugeneodontiformes - Helicoprionidae
"Campodus variabilis" = Agassizodus variabilis
"Campodus variabilis" = Agassizodus variabilis Newberry and Worthen 1870 chimaera