PBDB Collection

Sohl and Koch OFR # 668 (Cretaceous of the United States)

Also known as Walkers Ck-3; USGS # 32182

Where: Milam County, Texas (30.9° N, 97.0° W: paleocoordinates 36.3° N, 75.6° W)

• small collection-level geographic resolution

When: Discoscaphites conradi ammonoid zone, uppermost Member (Corsicana Marl Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Haustator bilira assemblage zone

• member-level stratigraphic resolution

Environment/lithology: marine; gray, silty claystone

Size class: mesofossils

Preservation: original aragonite, 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 4446: 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

unclassified
-	Vertebrata indet. Vertebrata indet. Lamarck 1801 Fish parts
Cephalopoda
Ammonoidea -	Ammonoidea indet. Ammonoidea indet. ammonite "Ammonite fragments": originally entered as "Ammonite"; changed by JA 30.6.04
Ammonitida - Baculitidae	Baculites sp. Baculites sp. Lamarck 1799 ammonite Baculites sp.
Gastropoda
Cerithioidea - Pickworthiidae	Urceolabrum tuberculatum Urceolabrum tuberculatum snail Urceolabrum turberculatum callistu
Cerithioidea - Turritellidae	Turritella vertebroides Turritella vertebroides Morton 1834 turret shell Turritella vertebroides Morton
Neogastropoda - Fasciolariidae	Bellifusus deatsvillensis Bellifusus deatsvillensis snail Bellifusus deatsvillensis Stephens
Opisthobranchia - Cylichnidae	Cylichna sp. Cylichna sp. Lovén 1846 snail Cylichna sp.
Heterostropha - Architectonicidae	Margaritella pumila Margaritella pumila snail Margaritella pumila Stephenson
Seguenzioidea - Eucyclidae	Calliomphalus sp. Calliomphalus sp. Cossmann 1888 snail Calliomphalus sp.
Bivalvia
Nuculanida - Malletiidae	Malletia longfrons Malletia longfrons clam Malletia longfrons (Conrad)
Nuculanida - Nuculanidae	Nuculana whitfieldi Nuculana whitfieldi pointed nut clam Nuculana whitfieldi (Gardner)
Carditida - Carditidae	Vetericardiella webbervillensis Vetericardiella webbervillensis clam Vetericardiella webbervillensis (S
Cardiida - Tellinidae	Tellinimera buboana Tellinimera buboana tellin clam Tellinimeria buboana Stephenson - originally entered as "Tellinimeria buboana"
Pholadida - Corbulidae	Corbula sp. Corbula sp. Bruguière 1789 clam Corbula sp.
Mytilida - Crenellidae	Crenella elegantula Crenella elegantula Meek and Hayden 1862 clam Crenella elegantula Meek & Hayden
Ostreida - Ostreidae	Ostrea sp. Ostrea sp. Linnaeus 1758 oyster Ostrea sp.
Pectinida - Entoliidae	Syncyclonema simplicius Syncyclonema simplicius scallop Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
Arcida - Arcidae	Striarca webbervillensis Striarca webbervillensis clam Striarca webbervillensis (Stephens
Scaphopoda
Dentaliida - Dentaliidae	Dentalium leve Dentalium leve Stephenson 1923 tusk shell Dentalium leve Stephenson