Woodbine 136 (Cretaceous of the United States)

Where: Grayson County County, Texas (33.7° N, 96.4° W: paleocoordinates 31.9° N, 60.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lewisville Member (Woodbine Formation), Cenomanian (100.5 - 93.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; concretionary, sideritic, gray shale

• sideritic concretions in a 6 foot bed of gray silty shale, 1 foot below an 8 foot bed of tuffaceous sandstone, and 5 feet above a 2 foot bed of lignite, estimated 50 to 60 feet below top of member.

Collection methods: H. R. Bergquist 1946.

Primary reference: L. W. Stephenson. 1952. Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas. United States Geological Survey Professional Paper 242:1-225 [M. Kosnik/M. Kosnik/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 6577: authorized by Matt Kosnik, entered by Matt Kosnik on 12.03.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• taxonomy partially updated by Jablonski and Kosnik
Show authors, comments, and common names
Bivalvia
 Pectinida - Anomiidae
Anomia ponticulana
Anomia ponticulana jingle
Anomia ponticulana Stephenson
 Mytilida - Mytilidae
Brachidontes fulpensis
Brachidontes fulpensis mussel
Brachidontes fulpensis Stephenson
 Pholadida - Corbulidae
? Caryocorbula ovisana, Ursirivus fanninensis
? Caryocorbula ovisana clam
Caryocorbula? ovisana Stephenson
Ursirivus fanninensis clam
Ursirivus fanninensis Stephenson