P-23 (Brazos River K-T boundary, TX) (Paleocene of the United States)

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: Pisgah Member (Kincaid Formation), Danian (66.0 - 61.6 Ma)

• in foram zone P1c

Environment/lithology: marine; unlithified, argillaceous siltstone

• unconsolidated clay or clayey silt

Size class: mesofossils

Collection methods: bulk, mechanical,

Primary reference: T. A. Hansen, B. R. Farrell, and B. Upshaw, III. 1993. The first 2 million years after the Cretaceous-Tertiary boundary in east Texas: Rate and paleoecology of the molluscan recovery. Paleobiology 19(2):251-265 [A. Miller/K. Layou/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 5592: authorized by Arnold Miller, entered by Karen Layou on 20.10.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Solemyida - Solemyidae
Solemya bilix Awning Clam
 Nuculida - Nuculidae
"Nucula mediavia" = Nucula (Nucula) mediavia
"Nucula mediavia" = Nucula (Nucula) mediavia Harris 1896 nut clam
 Nuculanida - Nuculanidae
Nuculanidae indet. Adams and Adams 1858 pointed nut clam
Jupiteria smirna pointed nut clam
Saccella sp. Woodring 1925 pointed nut clam
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
 Arcida - Arcidae
Striarca ? sp. Conrad 1862 clam
S.? sp. a
 Pectinida - Propeamussiidae
Amusium alabamense Aldrich 1886 mud scallop
 Poromyida - Cuspidariidae
Cuspidaria grandis Stephenson 1941 clam
 Lucinida - Lucinidae
Lucinidae indet. Fleming 1828 clam
Scaphopoda
  -
Scaphopoda indet. Bronn 1862 tusk shell
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Gastropoda
 Sorbeoconcha - Naticidae
Naticidae indet. Guilding 1834 moon snail
 Cerithioidea - Turritellidae
Turritellidae indet. Lovén 1847 turret shell
 Opisthobranchia - Retusidae
Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
solitary coral