PBDB Collection

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: 39.4° N, 68.2° W (Wright 2013)

• small collection-level geographic resolution

When: Escondido Formation, Maastrichtian (72.2 - 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: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

Sedentaria
Sabellida - Serpulidae	Serpula sp. Serpula sp. Linnaeus 1758 Serpula sp.
Bryozoa
-	Bryozoa indet. Bryozoa indet. Ehrenberg 1831 Reptilian tooth
Bivalvia
Carditida - Crassatellidae	Crassatella sp. Crassatella sp. Lamarck 1799 clam Crassatella sp.
Cardiida - Cardiidae	Trachycardium sp. Trachycardium sp. Mörch 1853 cockle Trachycardium sp.
Cardiida - Mactridae	Cymbophora sp. Cymbophora sp. Gabb 1869 clam Cymbophora sp.
Arcida - Arcidae	Striarca cuneata, Arca rostellata Striarca cuneata clam Striarca cuneata Gabb Arca rostellata ark Arca rostellata (Morton)
Pectinida - Anomiidae	Anomia (Anomia) ornata Anomia (Anomia) ornata Gabb 1876 jingle Anomia (Anomia) ornata Gabb
Ostreida - Ostreidae	Crassostrea cortex Crassostrea cortex oyster Crassostrea cortex (Conrad)
Nuculanida - Nuculanidae	Nuculana sp. Nuculana sp. Link 1807 pointed nut clam Nuculana sp.
Gastropoda
Cerithioidea - Thiaridae	Pachymelania sp. n. sp. Pachymelania sp. n. sp. White 1895 snail Pachymelania n. sp. (Escondido) - originally entered as "Pachymelania n. sp."