Where: Grayson County County, Texas (33.7° N, 96.8° W: paleocoordinates 32.0° N, 61.3° 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, calcareous sandstone
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 6575: authorized by Matt Kosnik, entered by Matt Kosnik on 12.03.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
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