Sohl and Koch OFR # 863 (Cretaceous of the United States)

Also known as Muela Ck; USGS # 32840

Where: Zavala County, Texas (29.1° N, 100.1° W: paleocoordinates 35.2° N, 78.9° 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, calcareous sandstone

Size class: mesofossils

Preservation: original calcite

Reposited in the USGS

Collection methods: bulk,

• Sohl 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 4577: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Polychaeta
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
Bivalvia
 Arcida - Arcidae
Arca rostellata ark
Arca rostellata (Morton)
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)
 Carditida - Crassatellidae
Crassatella sp. Lamarck 1799 clam
Crassatella sp.
 Cardiida - Mactridae
Cymbophora sp. Gabb 1869 clam
Cymbophora sp.
 Cardiida - Cardiidae
Trachycardium sp. Mörch 1853 cockle
Trachycardium sp.
 Protobranchia - Nuculanidae
Nuculana sp. Link 1807 pointed nut clam
Nuculana sp.
Gastropoda
 Sorbeoconcha - Thiaridae
Pachymelania sp. n. sp. White 1895 snail
Pachymelania n. sp. (Escondido) - originally entered as "Pachymelania n. sp."
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Reptilian tooth