USGS 07546 (Cretaceous of the United States)

Also known as Simpson's Hill, public road, westward-facing slope of Kings Creek Valley, about 2 miles southwest of the 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; glauconitic, gray sandstone

• 20 feet of greenish-gray massive slightly glauconitic sand locally indurated to large masses of fossiliferous sandstone, probably near middle of formation.

Size class: mesofossils

Reposited in the USGS

• 7546: L. W. Stephenson 1911, 14099: L. W. Stephenson 1928

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 7494: 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
Lingulata
 Lingulida - Lingulidae
aff. Lingula subspatulata
aff. Lingula subspatulata Hall and Meek 1855
Lingula aff. L. subspatulata Hall and Meek
Polychaeta
 Sabellida - Serpulidae
Serpula cretacea
Serpula cretacea
Serpula cretacea (Conrad)
Cephalopoda
 Ammonitida - Baculitidae
Baculites undatus, Baculites claviformis
Baculites undatus Stephenson 1941 ammonite
Baculites undatus Stephenson
Baculites claviformis Stephenson 1941 ammonite
Baculites claviformis Stephenson
Scaphopoda
 Gadilida - Gadilidae
Cadulus coonensis, Cadulus obnutus
Cadulus coonensis tusk shell
Cadulus coonensis Stephenson
Cadulus obnutus tusk shell
Cadulus obnutus (Conrad)
Gastropoda
 Euomphalina - Euomphalidae
Weeksia lubbocki
Weeksia lubbocki snail
Weeksia lubbocki Stephenson
 Opisthobranchia - Scaphandridae
Ellipsoscapha striatella
Ellipsoscapha striatella Shumard 1861 snail
Ellipsoscapha striatella (Shumard)
 Cerithioidea - Cerithiidae
Cerithium simpsonensis
Cerithium simpsonensis Stephenson 1941 cerith snail
Cerithium simpsonensis Stephenson
 Sorbeoconcha - Naticidae
Banis siniformis, Polinices stephensoni, Euspira rectilabrum texanus, Euspira rectilabrum
Banis siniformis Stephenson 1941 moon snail
Banis siniformis Stephenson
Polinices stephensoni moon snail
Polinices stephensoni Wade
Euspira rectilabrum texanus Agassiz 1837 moon snail
Polinices rectilabrum texanus Stephenson
Euspira rectilabrum Conrad 1858 moon snail
Polinices rectilabrum (Conrad)
 Neogastropoda - Fasciolariidae
Anomalofusus bellulus
Anomalofusus bellulus snail
Anomalofusus bellusus Stephenson
 Neogastropoda - Turridae
Fusimilis robustus, Lutema simpsonensis
Fusimilis robustus turrid
Fusimilis robustus Stephenson
Lutema simpsonensis turrid
Lutema simpsonensis Stephenson
 Neogastropoda - Volutidae
Liopeplum leioderma longum, Liopeplum leioderma tabulatum
Liopeplum leioderma longum Dall 1890 volute
Liopeplum lioderma longum Stephenson
Liopeplum leioderma tabulatum Dall 1890 volute
Liopeplum lioderma tabulatum Stephenson
 Sorbeoconcha - Aporrhaidae
Pterocerella robustus, Anchura lamari
Pterocerella robustus snail
Pterocerella robustus Stephenson
Anchura lamari snail
Anchura lamari Stephenson
Bivalvia
 Myalinida - Inoceramidae
Inoceramus ? vanuxemi
Inoceramus ? vanuxemi clam
Inoceramus vanuxemi Meek and Hayden?
 Ostreida - Pteriidae
? Pteria ? linguaeformis
? Pteria ? linguaeformis pearl oyster
Pteria? linguaeformis (Evans and Shumard)?
 Arcida - Parallelodontidae
Nemodon sp.
Nemodon sp. Conrad 1869 clam
Nemodon spp. Stephenson 1941
 Cardiida - Cardiidae
Ethmocardium (Ethmocardium) welleri, Granocardium (Granocardium) bowenae, Cardium (Pachycardium) wadei
Ethmocardium (Ethmocardium) welleri cockle
Cardium (Ethmocardium) welleri Stephenson
Granocardium (Granocardium) bowenae cockle
Cardium (Granocardium) bowenae Stephenson
Cardium (Pachycardium) wadei cockle
Cardium (Pachycardium) waldei Stephenson
 Cardiida - Tellinidae
Tellina munda, Tellina sp.
Tellina munda tellin clam
Tellina munda Stephenson
Tellina sp. Linnaeus 1758 tellin clam
Tellina spp.
 Cardiida - Veneridae
Legumen ellipticum, Aphrodina tippana
Legumen ellipticum venus clam
Legumen ellipticum Conrad
Aphrodina tippana venus clam
Aphrodina tippana Conrad
 Cardiida - Mactridae
Cymbophora subtilis, Cymbophora simpsonensis, Cymbophora scabellum
Cymbophora subtilis clam
Cymbophora subtilis Stephenson
Cymbophora simpsonensis clam
Cymbophora simpsonensis Stephenson
Cymbophora scabellum clam
Cymbophora scabellum Stephenson
 Pholadida - Corbulidae
Caestocorbula crassiplica
Caestocorbula crassiplica Gabb 1860 clam
Corbula crassiplica Gabb
 Solenida - Pharidae
? Leptosolen levis, Leptosolen biplicata
? Leptosolen levis clam
Leptosolen? levis Stephenson
Leptosolen biplicata Conrad 1858 clam
Leptosolen biplicatus Conrad