Where: Falls County, Texas (31.3° N, 97.0° W: paleocoordinates 36.1° N, 77.4° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: T. imperforata zone, Danian (66.0 - 61.6 Ma)
• composite section from CM-4 and Brazos River, in foram zone PO
Environment/lithology: marine; unlithified, bioturbated, silty claystone
Size class: mesofossils
Collection methods: bulk, mechanical,
Primary reference: T. A. Hansen, B. Upshaw, E. G. Kauffman and W. Gose. 1993. Patterns of molluscan extinction and recovery across the Cretaceous-Tertiary boundary in east Texas; report on new outcrops. Cretaceous Research 14:685-706 [A. Miller/K. Layou/M. Uhen]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 5572: authorized by Arnold Miller, entered by Karen Layou on 18.10.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Pisces | |
"Pisces indet." = Osteichthyes
| |
Bivalvia | |
Nuculana cf. travisana pointed nut clam | |
Ostreidae indet. Rafinesque 1815 oyster | |
Pteriidae ? indet. Gray 1847 pearl oyster
Phelopteria ? sp. Stephenson 1953 pearl oyster | |
Cuspidaria grandis Stephenson 1941 clam | |
Cardiidae indet. Lamarck 1809 cockle | |
Caestocorbula ? sp. Vincent 1910 clam | |
| |
Scaphopoda | |
Cadulus sp. Philippi 1844 tusk shell | |
Dentalium sp. Linnaeus 1758 tusk shell | |
Gastropoda | |
Naticidae indet. Guilding 1834 moon snail | |
Amuletum curvocostatum turrid | |
| |
Cephalopoda | |
| |
Scaphites sp. Parkinson 1811 ammonite |