Where: Nebraska (41.8° N, 96.2° W: paleocoordinates 0.3° S, 27.2° W)

When: Altamont limestone Formation (Marmaton Group), Kasimovian (307.0 - 303.7 Ma)

• highest known stratigraphic occurrence of Stethacanthus.

Environment/lithology: marine; limestone

Size class: macrofossils

Collection methods: Repository: University of Kansas Natural History Museum (KUMNH)

Primary reference: M. E. Williams. 1985. The "Cladodont level" sharks of the Pennsylvanian black shales of central North America. Palaeontographica Abteilung A 190:83-158 [M. Clapham/P. Vazquez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133405: authorized by Matthew Clapham, entered by Priscilla Vazquez on 12.09.2012

Creative Commons license: CC BY (attribution)