M 813 (Eocene of the United States)

Where: Houston County, Texas (31.4° N, 95.5° W: paleocoordinates 32.6° N, 86.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Stone City Member (Crockett Formation), Bartonian (41.3 - 38.0 Ma)

• member-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 98871: authorized by Jocelyn Sessa, entered by Ursula Smith on 21.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Neogastropoda - Cochlespiridae
"Eodrillia texana" = Tropisurcula (Eodrillia)
"Eodrillia texana" = Tropisurcula (Eodrillia) snail
 Neogastropoda - Borsoniidae
Microdrillia "spp." Casey 1903 snail
 Trochoidea - Skeneidae