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 5556: authorized by Arnold Miller, entered by Karen Layou on 13.10.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Sphenodiscus ? sp. Meek 1871 ammonite | |
Baculites sp. Lamarck 1799 ammonite | |
Discoscaphites sp. Meek 1870 ammonite
Scaphites sp. Parkinson 1811 ammonite | |
Scaphopoda | |
Dentalium sp. Linnaeus 1758 tusk shell
Dentalium leve Stephenson 1923 tusk shell | |
Gastropoda | |
Turritella sp. Lamarck 1799 turret shell | |
Anisomyon sp. Meek and Hayden 1860 pulmonate | |
Acmaea ? sp. Eschscholtz 1830 limpet | |
Bivalvia | |
Nuculana sp., Nuculana houstoni, Nuculana corsicana, Nuculana ? corbetensis, Nuculana aff. coloradoensis
Nuculana sp. Link 1807 pointed nut clam includes: N. sp. b (3), N. sp. c (1), N. sp. e (4), N. sp. (18)
Nuculana houstoni pointed nut clam
Nuculana corsicana pointed nut clam
Nuculana ? corbetensis pointed nut clam
Nuculana aff. coloradoensis pointed nut clam | |
Nucula sp. Lamarck 1799 nut clam | |
Solemya cf. bilix Awning Clam | |
Volsella sp. Scopoli 1777 mussel | |
Crenella sp. Brown 1827 clam | |
Cubitostrea tecticosta Gabb 1860 oyster | |
Ostrea sp. Linnaeus 1758 oyster
Ostrea aff. congesta Conrad 1843 oyster
"Ostrea mesenterica" = Lopha mesenterica Morton 1834 oyster | |
Pycnodonte sp. Fischer von Waldheim 1835 oyster | |
Syncyclonema sp. Meek 1864 scallop
Syncyclonema archeri scallop | |
"Idonearca sp." = Cucullaea (Idonearca)
"Idonearca sp." = Cucullaea (Idonearca) Conrad 1862 clam | |
| |
Lucina sp. Bruguière 1797 clam | |
| |
Corbula aff. inflata clam
Corbula sp. Bruguière 1789 clam
Corbula ? williardi clam
Corbula linteroidea clam | |
Dreissena sp. Beneden 1835 clam | |
| |
Tellina sp. Linnaeus 1758 tellin clam | |
Vetericardiella sp. Chavan 1969 clam | |
Astarte sp. Sowerby 1816 clam |