Where: Brazos County, Texas (30.6° N, 96.5° W: paleocoordinates 31.9° N, 87.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Cook Mountain Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)
• member-level stratigraphic resolution
Environment/lithology: offshore; unlithified sandstone
Size class: mesofossils
Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90454: authorized by Jocelyn Sessa, entered by Laurie Eccles on 26.07.2009, edited by Ursula Smith
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Scaphopoda | |
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Cadulus (Dischides) subcoarcuatus tusk shell | |
| Gastropoda | |
"Architectonica scrobiculata" = Patulaxis scrobiculata, Architectonica amoena, Architectonica (Architectonica) bellistriata, Architectonica (Granosolarium) texcarolina
"Architectonica scrobiculata" = Patulaxis scrobiculata Conrad 1833 snail
Architectonica amoena sundial
Architectonica (Architectonica) bellistriata Conrad 1854 sundial | |
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Acteon idoneus Conrad 1833 snail | |
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Retusa (Cylichnina) galba Conrad 1833 snail | |
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Turritella "sp. C" Lamarck 1799 turret shell | |
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Hipponix pygmaeus hoof shell | |
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Falsifusus houstonensis snail
Latirus moorei Gabb 1860 snail | |
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Pseudoliva vetusta Conrad 1833 true whelk
Terebrifusus multiplicatus true whelk
Buccitriton texanum true whelk
"Siphonalia" plummeri true whelk | |
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Bonellitia parilis snail | |
"Mitra (Fusimitra) perexilis" = Fusimitra
"Mitra (Fusimitra) perexilis" = Fusimitra mitre shell | |
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Terebra (Mirula) texagyra auger snail | |
"Conus (Lithoconus) sauridens" = Conus sauridens
"Conus (Lithoconus) sauridens" = Conus sauridens Conrad 1833 cone shell | |
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Scobinella reticulatoides turrid
Eucheilodon reticulata turrid
Michela trabeatoides Harris 1895 turrid
Trypanotopsis texana turrid | |
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Pyramimitra terebraeformis Conrad 1848 ribbed mitre
Uromitra brazosana ribbed mitre
Conomitra texana ribbed mitre | |
"Bullata semenoides" = Closia (Bullata), Caricella cherokeensis, Caricella stenzeli, Lapparia mooreana
"Bullata semenoides" = Closia (Bullata) volute
Caricella cherokeensis volute
Caricella stenzeli volute
Lapparia mooreana volute | |
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Murex fusates murex snail | |
"Ficopsis texana" = Ficus
"Ficopsis texana" = Ficus fig shell | |
| Bivalvia | |
"Yoldia (Orthoyoldia) psammotaea" = Orthoyoldia psammotaea
"Yoldia (Orthoyoldia) psammotaea" = Orthoyoldia psammotaea Dall 1898 pointed nut clam | |