P-26 (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 P1d

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 5595: authorized by Arnold Miller, entered by Karen Layou on 20.10.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp.
Dentalium sp. Linnaeus 1758 tusk shell
D. sp. a (1), D. sp. b (2), D. sp. (2)
Gastropoda
 Cerithioidea - Cerithiidae
Bittium estellense
Bittium estellense cerith snail
 Cerithioidea - Turritellidae
Turritella premortoni, Turritella prehumerosa
 Sorbeoconcha - Naticidae
Naticidae indet.
Naticidae indet. Guilding 1834 moon snail
 Neogastropoda - Olivellidae
Agaronia mediavia
 Neogastropoda - Volutidae
"Volutocorbis texanus" = Athleta (Volutocorbis)
"Volutocorbis texanus" = Athleta (Volutocorbis) volute
 Neogastropoda - Turridae
Turridae indet.
Turridae indet. Swainson 1840 turrid
T. sp. a (1), T. sp. b (3), T. (1)
 Heterostropha - Pyramidellidae
Creonella sp.
Creonella sp. Wade 1917 snail
C. sp. a
 Heterostropha - Acteonidae
Tornatellaea texana
 Heterostropha - Ringiculidae
Ringiculidae indet., Ringicula ? butleriana
Ringiculidae indet. Philippi 1853 snail
 Trochoidea - Skeneidae
Solariorbis proius
 Opisthobranchia - Retusidae
Retusa emoryi
 Opisthobranchia - Haminoeidae
Atys sp.
Atys sp. Montfort 1810 snail
Bivalvia
 Nuculanida - Nuculanidae
Nuculanidae indet., Jupiteria smirna, Saccella sp., Nuculana cf. corpulentoides, Nuculana ? saffordana
Nuculanidae indet. Adams and Adams 1858 pointed nut clam
Jupiteria smirna pointed nut clam
Saccella sp. Woodring 1925 pointed nut clam
Nuculana cf. corpulentoides pointed nut clam
Nuculana ? saffordana pointed nut clam
 Solemyida - Solemyidae
Solemya bilix
Solemya bilix Awning Clam
 Nuculida - Nuculidae
"Nucula mediavia" = Nucula (Nucula) mediavia
"Nucula mediavia" = Nucula (Nucula) mediavia Harris 1896 nut clam
 Poromyida - Cuspidariidae
Cuspidaria sp.
Cuspidaria sp. Dall 1886 clam
C. sp. a
 Hiatellida - Hiatellidae
Panopea sp.
Panopea sp. Menard 1807 clam
 Pholadida - Corbulidae
Corbula milium, Caryocorbula coloradoensis
 Cardiida -
"Veneroida indet." = Veneroidei
"Veneroida indet." = Veneroidei Gray 1854 clam
Leptonidae/Montacutidae sp.
 Lucinida - Lucinidae
"Lucina cf. uhleri" = Myrtaea (Myrtaea) curta
"Lucina cf. uhleri" = Myrtaea (Myrtaea) curta Conrad 1865 clam
 Carditida - Crassatellidae
Crassatella sp.
Crassatella sp. Lamarck 1799 clam
 Carditida - Carditidae
"Venericardia bulla" = Venericardia (Baluchicardia) bulla, Venericardia eoa
"Venericardia bulla" = Venericardia (Baluchicardia) bulla Dall 1903 clam
Venericardia eoa Plummer 1933 clam
 Arcida - Cucullaeidae
Cucullaea macrodonta
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
solitary coral
 Scleractinia - Caryophylliidae
"Caryophyllia ? mediavia" = Caryophyllia mediavia, "Caryophyllia ? dumblei" = Caryophyllia mediavia
"Caryophyllia ? mediavia" = Caryophyllia mediavia Vaughan and Popenoe 1935 stony coral
"Caryophyllia ? dumblei" = Caryophyllia mediavia Vaughan and Popenoe 1935 stony coral
 Scleractinia - Flabellidae
Flabellum ? conodeum