Where: Bastrop County, Texas (30.1° N, 97.5° W: paleocoordinates 34.9° N, 79.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Wills Point Formation (Midway Group), Early/Lower Paleocene to Early/Lower Paleocene (66.0 - 58.7 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; unlithified, glauconitic, silty claystone
Size class: mesofossils
Reposited in the TMM
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 86307: authorized by Mark Patzkowsky, entered by Jocelyn Sessa on 28.01.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Jupiteria smirna pointed nut clam | |
Cucullaea macrodonta clam | |
Barbatia sp. Gray 1842 clam | |
Pitar kempae venus clam | |
Corbula ? sp. Bruguière 1789 clam | |
Phacoides sp. Blainville 1825 clam | |
"Venericardia bulla" = Venericardia (Baluchicardia) bulla, "Venericardia wilcoxensis" = Venericardia (Baluchicardia) wilcoxensis
"Venericardia bulla" = Venericardia (Baluchicardia) bulla Dall 1903 clam
"Venericardia wilcoxensis" = Venericardia (Baluchicardia) wilcoxensis Dall 1903 clam Venericardia wilcoxensis subsp.
| |
Crassatella sp. Lamarck 1799 clam
Crassatella ioannes clam | |
Scaphopoda | |
Cadulus sp. Philippi 1844 tusk shell | |
Dentalium sp. Linnaeus 1758 tusk shell | |
Gastropoda | |
Natica sp. Scopoli 1777 moon snail | |
Levifusus lithae snail | |
Nassarius sp. Duméril 1806 snail | |
Laevibuccinum constrictum true whelk | |
Athleta ? sp., "Volutocorbis sp." = Athleta (Volutocorbis)
Athleta ? sp. Conrad 1853 volute
"Volutocorbis sp." = Athleta (Volutocorbis) Dall 1890 volute | |
Orthosurcula adeona ribbed mitre
Orthosurcula francescae ribbed mitre
Orthosurcula phoenicea ribbed mitre | |
Exilia pergracilis Conrad 1860 snail | |
Agaronia mediavia snail | |
Calyptraphorus aldrichi snail | |
"Ampullella sp." = Ampullina
"Ampullella sp." = Ampullina Férussac 1822 snail | |
Turritella hilli turret shell
Turritella ? hilli turret shell | |
Retusa emoryi snail | |
Tornatellaea texana snail | |
Ringicula alabamensis snail | |
Creonella sp. Wade 1917 snail | |
Anthozoa | |
Scleractinia indet. Bourne 1900 stony coral | |
Platytrochus ? primaevus, "Caryophyllia dumblei" = Caryophyllia mediavia
Platytrochus ? primaevus Vaughan and Popenoe 1935 stony coral
"Caryophyllia dumblei" = Caryophyllia mediavia Vaughan and Popenoe 1935 stony coral |