PBDB Collection

Sohl and Koch OFR # 904 (Cretaceous of the United States)

Also known as Chacon Cr; USGS # 8265

Where: Maverick County, Texas (28.9° N, 100.2° W: paleocoordinates 35.0° N, 79.0° W)

• small collection-level geographic resolution

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

• Haustator bilira assemblage zone.

• formation-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified, gray, silty sandstone

Size class: mesofossils

Preservation: original 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 4582: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Polychaeta
Sabellida - Serpulidae	Serpula sp. Serpula sp. Linnaeus 1758 Serpula sp.
Cephalopoda
Ammonitida - Sphenodiscidae	Sphenodiscus intermedius, Sphenodiscus pleurisepta Sphenodiscus intermedius Böse 1928 ammonite Sphenodiscus intermedius Boese Sphenodiscus pleurisepta Conrad 1857 ammonite Sphenodiscus pleurisepta (Conrad)
Gastropoda
Cerithioidea - Turritellidae	Turritella cf. forgemoli, Turritella sp. Turritella cf. forgemoli turret shell Turritella cf. T. forgemoli Coquan - originally entered as "Turritella cf. forgemoli" Turritella sp. Lamarck 1799 turret shell Turritella sp.
Sorbeoconcha - Naticidae	Banis siniformis Banis siniformis Stephenson 1941 moon snail Banis siniformis Stephenson
Bivalvia
Nuculanida - Malletiidae	Malletia longfrons Malletia longfrons clam Malletia longfrons (Conrad)
Pectinida - Anomiidae	Anomia (Anomia) ornata Anomia (Anomia) ornata Gabb 1876 jingle Anomia (Anomia) ornata Gabb
Ostreida - Ostreidae	Crassostrea cortex, Ostrea sp. Crassostrea cortex oyster Crassostrea cortex (Conrad) Ostrea sp. Linnaeus 1758 oyster Ostrea sp.
Arcida - Arcidae	Striarca cuneata Striarca cuneata clam Striarca cuneata Gabb
Cardiida - Cardiidae	Trachycardium sp. Trachycardium sp. Mörch 1853 cockle Trachycardium sp.
Cardiida - Tellinidae	"Linearia sp." = Linearis "Linearia sp." = Linearis Conrad 1860 tellin clam Linearia sp.
Cardiida - Mactridae	Cymbophora inflata Cymbophora inflata clam Cymbophora inflata Stephenson
Pholadida - Corbulidae	Corbula sp. Corbula sp. Bruguière 1789 clam Corbula sp.