Bed T, 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, glauconitic, gypsiferous, shelly/skeletal, brown, gray shale and poorly lithified, glauconitic, gray sandstone

• soft and plastic when wet or brittle when dry light olive-gray, weathering to moderate-brown, laminated, sparsely fossiliferous gypsiferous, glauconitic shale containing scattered pockets of friable or crumbly, olive-gray or olive-black, very fine-grained glauconite arenite

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 41438: authorized by Arnold Miller, entered by Karen Layou on 14.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Protobranchia - Nuculanidae
Orthoyoldia psammotaea Dall 1898 pointed nut clam
rare