Woodbine 147 (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; ferruginous sandstone

• 5 feet of ferruginous sandstone (with Inoceramus prefragilis), overlain by fine limonitic sandstone (with Breviarca (Sanoarca) grandis) in 3 feet of sandy shale (with Phelopteria dalli).

Collection methods: H. R. Bergquist 1947.

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 6588: 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
 Ostreida - Pteriidae
Phelopteria dalli
Phelopteria dalli Stephenson 1936 pearl oyster
Phelopteria dalli (Stephenson)
 Myalinida - Inoceramidae
Inoceramus prefragilis
Inoceramus prefragilis Stephenson 1952 clam
Inoceramus prefragilis Stephenson
 Arcida - Arcidae
Sanoarca (Sanoarca) grandis
Sanoarca (Sanoarca) grandis Stephenson 1952 clam
Breviarca (Sanoarca) grandis Stephenson
 Cardiida - Mactridae
Geltena obesa
Geltena obesa clam
Geltena obesa Stephenson