Where: Falls County, Texas (31.3° N, 96.9° W: paleocoordinates 36.6° N, 75.4° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: P. quadripunctata nannofossil zone, Corsicana Marl Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• Discoscaphites iris ammonoid zone - Landman et al., 2004
Environment/lithology: marine; unlithified, shelly/skeletal, gray 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 5561: authorized by Arnold Miller, entered by Karen Layou on 15.10.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Pisces | |
"Pisces indet." = Osteichthyes
| |
Scaphopoda | |
Dentalium leve Stephenson 1923 tusk shell | |
Bivalvia | |
Ostrea aff. congesta Conrad 1843 oyster
Ostrea sp. Linnaeus 1758 oyster | |
Gervillia ? sp. Defrance 1820 oyster | |
Syncyclonema sp. Meek 1864 scallop | |
Corbula sp. Bruguière 1789 clam
Corbula woodi clam | |
Veneridae indet. Rafinesque 1815 venus clam
Legumen ellipticum venus clam | |
| |
Cephalopoda | |
Baculites sp. Lamarck 1799 ammonite |