Bed F, Stone City Bluff (type locality Stone City beds) (Eocene to of the United States)

Where: Brazos County, Texas (30.6° N, 96.5° W: paleocoordinates 32.4° N, 86.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Stone City Formation, Lutetian to Lutetian (47.8 - 38.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, gypsiferous, shelly/skeletal, brown, gray, carbonaceous shale

• firm to slightly plastic when wet or brittle when dry olive-gray, weathering to light brown, laminated, fossiliferous, gypsiferous, carbonaceous shale; sparsely fossiliferous throughout, but with pockets of fossils concentrated in places

Size class: macrofossils

Primary reference: H. B. Stenzel, E. K. Krause, and J. T. Twining. 1957. Pelecypoda from the type locality of the Stone City beds (Middle Eocene) of Texas. University of Texas Publication (5704) [M. Kosnik/M. Kosnik/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41430: authorized by Arnold Miller, entered by Karen Layou on 14.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Nuculanida - Nuculanidae
Calorhadia (Calorhadia) compsa
Calorhadia (Calorhadia) compsa pointed nut clam
rare
 Arcida - Arcidae
Barbatia (Barbatia) uxorispalmeri, Arca (Arca) petropolitana
Barbatia (Barbatia) uxorispalmeri Stenzel and E. K 1957 clam
rare
Arca (Arca) petropolitana Stenzel and Krause 1957 ark
rare
 Ostreida - Pteriidae
Pteria (Pteria) petropolitana