Where: Atascosa County, Texas (28.7° N, 98.3° W: paleocoordinates 31.4° N, 86.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Claiborne Group, Early/Lower Eocene to Early/Lower Eocene (55.8 - 37.7 Ma)

• Possibly Cook Mountain Fm as the one species listed (Brachidontes texanus) only reported from that Fm.

• group-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91817: authorized by Jocelyn Sessa, entered by Laurie Eccles on 20.10.2009, edited by Ursula Smith

Creative Commons license: CC BY (attribution)