TMM Wills Point 8: Early/Lower Paleocene - Middle Paleocene, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Carditida - Carditidae
Venericardia bulla Dall 1903
9 individuals
recombined as Venericardia (Baluchicardia) bulla
(17 measurements)
Venericardia wilcoxensis Dall 1903
3 individuals
recombined as Venericardia (Baluchicardia) wilcoxensis
Venericardia wilcoxensis subsp. (6 measurements)
Bivalvia - Carditida - Crassatellidae
Crassatella sp. Lamarck 1799
1 individual
(2 measurements)
Crassatella ioannes
3 individuals
(5 measurements)
Bivalvia - Lucinida - Lucinidae
Phacoides sp. Blainville 1825
2 individuals
(3 measurements)
Bivalvia - Pholadida - Corbulidae
Corbula ? sp. Bruguière 1789
1 individual
Caryocorbula coloradoensis
2 individuals
original and current combination Corbula (Caryocorbula)
(5 measurements)
Bivalvia - Cardiida - Veneridae
Pitar kempae
1 individual
(1 measurement)
Bivalvia - Arcida - Arcidae
Barbatia sp. Gray 1842
1 individual
(1 measurement)
Bivalvia - Arcida - Cucullaeidae
Cucullaea macrodonta
1 individual
(1 measurement)
Bivalvia - Nuculanida - Nuculanidae
Jupiteria smirna
2 individuals
(3 measurements)
Gastropoda - Turritellidae
Turritella hilli
6 individuals
(7 measurements)
Turritella ? hilli
1 individual
Gastropoda - Ampullinidae
Ampullella sp. Cox 1931
6 individuals
synonym of Ampullina
(6 measurements)
Gastropoda - Rostellariidae
Calyptraphorus aldrichi
1 individual
(1 measurement)
Gastropoda - Neogastropoda - Buccinidae
Laevibuccinum constrictum
4 individuals
(4 measurements)
Gastropoda - Neogastropoda - Melongenidae
Levifusus lithae
3 individuals
(3 measurements)
Gastropoda - Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806
6 individuals
(6 measurements)
Gastropoda - Neogastropoda - Ptychatractidae
Exilia pergracilis Conrad 1860
1 individual
(1 measurement)
Gastropoda - Neogastropoda - Costellariidae
Orthosurcula adeona
1 individual
(1 measurement)
Orthosurcula francescae
2 individuals
(2 measurements)
Orthosurcula phoenicea
2 individuals
(2 measurements)
Gastropoda - Neogastropoda - Olivellidae
Agaronia mediavia
4 individuals
(4 measurements)
Gastropoda - Neogastropoda - Volutidae
Athleta ? sp. Conrad 1853
2 individuals
(2 measurements)
Volutocorbis sp. Dall 1890
2 individuals
spelled with current rank as Athleta (Volutocorbis)
(2 measurements)
Gastropoda - Naticidae
Natica sp. Scopoli 1777
5 individuals
(5 measurements)
Gastropoda - Opisthobranchia - Retusidae
Retusa emoryi
7 individuals
(7 measurements)
Gastropoda - Heterostropha - Pyramidellidae
Creonella sp. Wade 1917
1 individual
(1 measurement)
Gastropoda - Heterostropha - Acteonidae
Tornatellaea texana
8 individuals
(8 measurements)
Gastropoda - Heterostropha - Ringiculidae
Ringicula alabamensis
3 individuals
(3 measurements)
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
2 individuals
(2 measurements)
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
9 individuals
(9 measurements)
Anthozoa - Scleractinia
Scleractinia indet. Bourne 1900
24 individuals
(24 measurements)
Anthozoa - Scleractinia - Caryophylliidae
Caryophyllia dumblei Vaughan and Popenoe 1935
17 individuals
synonym of Caryophyllia mediavia
(17 measurements)
Platytrochus ? primaevus Vaughan and Popenoe 1935
3 individuals
(3 measurements)
see common names

Geography
Country:United States State/province:Texas County:Bastrop
Coordinates: 30.1° North, 97.5° West (view map)
Paleocoordinates:34.9° North, 79.1° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Paleocene
10 m.y. bin:Cenozoic 1
Key time interval:Early/Lower Paleocene - Middle Paleocene
Age range of interval:66.00000 - 59.20000 m.y. ago
Stratigraphy
Geological group:Midway Formation:Wills Point
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:glauconitic unlithified silty claystone
Includes fossils?Y
Lithology description: "Thinly bedded, silty, glauconitic, fossiliferous clay, containing concretions near the top of the outcrop." The lithology of this locality is described in Zachos et al., 2005.
Environment:deep subtidal shelf
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:TMM
Metadata
Database number:86307
Authorizer:M. Patzkowsky Enterer:J. Sessa
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:2009-01-28 16:46:35 Last modified:2012-05-01 16:52:38
Access level:the public Released:2009-01-28 16:46:35
Creative Commons license:CC BY
Reference information

Primary reference:
28506. J. A. Sessa, M. E. Patzkowsky, and T. J. Bralower. 2009. Impact of lithification on the diversity, size distribution, and recovery dynamics of marine invertebrate assemblages. Geology 37(2):115-118 [M. Patzkowsky/J. Sessa/J. Sessa]

Secondary references:

29915 J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa]