Sohl and Koch OFR # 961 (Cretaceous of the United States)

Also known as Cuevas Cr; USGS # 8241

Where: Maverick County, Texas (28.5° N, 100.3° W: paleocoordinates 34.7° N, 79.3° W)

• small collection-level geographic resolution

When: middle Member (Escondido Formation), Maastrichtian (72.1 - 66.0 Ma)

• Haustator bilira assemblage zone.

• member-level stratigraphic resolution

Environment/lithology: estuary or bay; sandy siltstone

Size class: mesofossils

Preservation: original calcite, replaced with calcite

Reposited in the USGS

• Stephenson collection

Primary reference: N. F. Sohl and C. F. Koch. 1984. Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain. USGS Open File Report 84-687:1-282 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 4627: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Sphenodiscidae
Sphenodiscus pleurisepta, "Sphenodiscus lenticularis" = Sphenodiscus lobatus
Sphenodiscus pleurisepta Conrad 1857 ammonite
Sphenodiscus pleurisepta (Conrad)
"Sphenodiscus lenticularis" = Sphenodiscus lobatus Tuomey 1856 ammonite
Sphenodiscus lenticularis (Owen)
Gastropoda
 Neogastropoda - Volutidae
Liopeplum cretaceum Conrad 1858 volute
Liopeplum cretaceum (Conrad)
Bivalvia
 Arcida - Arcidae
Striarca cuneata clam
Striarca cuneata Gabb
 Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876 jingle
Anomia (Anomia) ornata Gabb
 Ostreida - Ostreidae
Crassostrea cortex oyster
Crassostrea cortex (Conrad)
 Cardiida - Mactridae
Cymbophora inflata clam
Cymbophora inflata Stephenson
 Cardiida - Cardiidae
Trachycardium sp. Mörch 1853 cockle
Trachycardium sp.