M 600 (Eocene of the United States)

Where: Robertson County, Texas (30.9° N, 96.4° W: paleocoordinates 32.2° N, 87.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Wheelock Member (Cook Mountain 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 99026: authorized by Jocelyn Sessa, entered by Ursula Smith on 25.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Neogastropoda - Buccinidae
Pseudoliva vetusta Conrad 1833 true whelk
Pseudoliva vetusta forma A
 Neogastropoda - Melongenidae
 Neogastropoda - Borsoniidae
 Neogastropoda - Turridae
 Neogastropoda - Volutidae
Caricella demissa Conrad 1848 volute
Caricella demissa texana
 Neogastropoda - Muricidae
Cephalopoda
  -
Belosaepia ungula Yancey et al. 2010
Scaphopoda
 Gadilida - Gadilidae
 Dentaliida - Dentaliidae
"Dentalium (Antalis) minutistriatum" = Dentalium minutistriatum
"Dentalium (Antalis) minutistriatum" = Dentalium minutistriatum Gabb 1850 tusk shell