Eagle County, sec. 16, T2S, R83W (Carboniferous of the United States)

Where: Colorado (39.9° N, 106.7° W: paleocoordinates 1.4° N, 36.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Unnamed shale bed in Unit 2 of Stevens (1958) below Resolution Member, Minturn Formation, late Atokan

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collected by W. Itano; reposited in the AMNH

Primary reference: W. M. Itano, K. J. Houck, and M. G. Lockley. 2003. Ctenacanthus and other chondrichthyan spines and denticles from the Minturn Formation (Pennsylvanian) of Colorado. Journal of Paleontology 77:524-535 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132300: authorized by Matthew Clapham, entered by Matthew Clapham on 11.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Ctenacanthiformes - Ctenacanthidae
Ctenacanthus buttersi St John and Worthen 1883 elasmobranch
AMNH 19236