Where: Grayson County, Texas (33.0° N, 96.0° W: paleocoordinates 31.1° N, 60.7° W)

• coordinate based on nearby landmark

When: Lewisville Formation (Woodbine Group), Middle Cenomanian to Middle Cenomanian (99.6 - 93.5 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, fine-grained, ferruginous, red, sandy sandstone

Size class: macrofossils

Collection methods: surface (float)

Primary reference: H. B. Stenzel. 1952. Larger Invertebrate Fossils of the Woodbine Formation (Cenomanian) of Texas. Geological Society of America Special Paper 212-242 [C. Schweitzer/L. Baltzly]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135101: authorized by Carrie Schweitzer, entered by Lerin Baltzly on 21.10.2012

Creative Commons license: CC BY (attribution)