Where: Bastrop County, Texas (30.2° N, 97.5° W: paleocoordinates 35.1° N, 78.2° W)
• coordinate based on unpublished field data
• outcrop-level geographic resolution
When: Mexia Member (Wills Point Formation), Danian (66.0 - 61.6 Ma)
• 2 ft above Venericardia Bed in Mexia member of Wills Point Fm
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; unlithified, glauconitic, gray, silty, sandy mudstone
Size class: mesofossils
Collected by harles Schuchert & Paul Seashore in 14 1926; reposited in the YPM
Collection methods: bulk, surface (in situ), sieve,
• Collected by Charles Schuchert & Paul Seashore, Jan 14 1926, J. Sessa sieved and identified these YPM bulk samples.
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: paleoecologic analysis
PaleoDB collection 85315: authorized by Mark Patzkowsky, entered by Jocelyn Sessa on 14.12.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Jupiteria smirna pointed nut clam
Nuculana sp. Link 1807 pointed nut clam | |
Limopsis quihi clam | |
Cucullaea macrodonta clam | |
Ostrea pulaskensis Harris 1892 oyster | |
Pteria sp. Scopoli 1777 pearl oyster | |
Kelliella ? evansi clam | |
Pitar kempae venus clam
Pitar pteleina 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 | |
Scaphopoda | |
Cadulus sp. Philippi 1844 tusk shell | |
Dentalium sp. Linnaeus 1758 tusk shell | |
Gastropoda | |
Polinices harrisii moon snail | |
"Volutocorbis rugatus" = Athleta (Volutocorbis), "Volutocorbis limopsis" = Athleta (Volutocorbis), "Volutocorbis texanus" = Athleta (Volutocorbis)
"Volutocorbis rugatus" = Athleta (Volutocorbis) volute
"Volutocorbis limopsis" = Athleta (Volutocorbis) volute
"Volutocorbis texanus" = Athleta (Volutocorbis) volute | |
Eupleura morula murex snail | |
"Coronia mediavia" = Gemmula (Coronia)
"Coronia mediavia" = Gemmula (Coronia) turrid | |
Orthosurcula francescae ribbed mitre
Orthosurcula phoenicea ribbed mitre | |
Exilia pergracilis Conrad 1860 snail | |
Agaronia mediavia snail | |
Calyptraphorus aldrichi snail | |
Turritella hilli turret shell | |
Bittium estellense cerith snail | |
Calyptraea sp. Lamarck 1799 slipper shell | |
Retusa emoryi snail | |
Tornatellaea texana snail | |
Architectonica phoenicea sundial | |
Anthozoa | |
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