M 540 (Eocene of the United States)

Where: Bastrop County, Texas (30.0° N, 97.2° W: paleocoordinates 31.3° N, 88.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Stone City Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: 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 98726: authorized by Jocelyn Sessa, entered by Ursula Smith on 20.10.2010, edited by Laurie Eccles

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Neogastropoda - Clavatulidae
 Neogastropoda - Volutidae
 Sorbeoconcha - Cassidae
Galeodea planotecta Meyer and Aldrich 1886 snail
Bivalvia
 Arcida - Arcidae