USGS 07547 (Cretaceous of the United States)

Also known as Field north of road on Simpson's place, 2 miles southwest of courthouse at Kaufman, Kaufman County;

Where: Kaufman County, Texas (32.6° N, 96.3° W: paleocoordinates 37.9° N, 73.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Nacatoch Sand Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; concretionary, argillaceous, calcareous sandstone

• large calcareous fossiliferous concretions belonging to same zone as USGS 7546.

Size class: mesofossils

Reposited in the USGS

• L. W. Stephenson 1911

Primary reference: L. W. Stephenson. 1941. The larger invertebrate fossils of the Navarro group of Texas. The University of Texas Publication 4101:1-625 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7495: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Polychaeta
 Sabellida - Serpulidae
Serpula cretacea
Serpula cretacea
Serpula cretacea (Conrad)
Bivalvia
 Mytilida - Mytilidae
Volsella uddeni
Volsella uddeni mussel
Volsella uddeni Stephenson
 Cardiida - Mactridae
Cymbophora scabellum, Cymbophora subtilis
Cymbophora scabellum clam
Cymbophora scabellum Stephenson
Cymbophora subtilis clam
Cymbophora subtilis Stephenson
 Cardiida - Cardiidae
Granocardium (Granocardium) bowenae, Ethmocardium (Ethmocardium) welleri
Granocardium (Granocardium) bowenae cockle
Cardium (Granocardium) bowenae Stephenson
Ethmocardium (Ethmocardium) welleri cockle
Cardium (Ethmocardium) welleri Stephenson
 Solenida - Pharidae
Leptosolen biplicata
Leptosolen biplicata Conrad 1858 clam
Leptosolen biplicatus Conrad
 Poromyida - Poromyidae
Cymella bella texana, Liopistha protexta
Cymella bella texana Meek 1864 clam
Cymella bella texana Stephenson
Liopistha protexta Conrad 1853 clam
Liopistha protexta (Conrad)
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium leve
Dentalium leve Stephenson 1923 tusk shell
Dentalium leve Stephenson
Gastropoda
 Sorbeoconcha - Aporrhaidae
Pterocerella robustus
Pterocerella robustus snail
Pterocerella robustus Stephenson
 Neogastropoda - Turridae
Lutema hubbardi
Lutema hubbardi turrid
Lutema hubbardi Stephenson
 Neogastropoda - Volutidae
Liopeplum leioderma longum
Liopeplum leioderma longum Dall 1890 volute
Liopeplum lioderma longum Stephenson
 Neogastropoda - Paladmetidae
Paladmete corbuliformis
Paladmete corbuliformis Stephenson 1941 snail
Paladmete corbuliformis Stephenson
 Sorbeoconcha - Naticidae
Banis siniformis, Polinices stephensoni, Euspira rectilabrum, Gyrodes rotundus, Gyrodes subcarinatus
Banis siniformis Stephenson 1941 moon snail
Banis siniformis Stephenson
Polinices stephensoni moon snail
Polinices stephensoni Wade
Euspira rectilabrum Conrad 1858 moon snail
Polinices rectilabrum (Conrad)
Gyrodes rotundus moon snail
Gyrodes rotundus Stephenson
Gyrodes subcarinatus moon snail
Gyrodes subcarinatus Stephenson
 Opisthobranchia - Cylichnidae
Cylichna secalina
Cylichna secalina Shumard 1861 snail
Cylichna secalina Shumard
 Opisthobranchia - Haminoeidae
"? Haminaea simpsonensis" = Haminoea
"? Haminaea simpsonensis" = Haminoea snail
Haminea? simpsonensis Stephenson
 Euomphalina - Euomphalidae
Weeksia lubbocki
Weeksia lubbocki snail
Weeksia lubbocki Stephenson