PBDB Collection

Sohl and Koch OFR # 804 (Cretaceous of the United States)

Also known as Chacon; USGS # 32831

Where: Medina County, Texas (29.3° N, 99.0° W: paleocoordinates 35.2° N, 77.7° W)

• small collection-level geographic resolution

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

• Haustator bilira assemblage zone.

• member-level stratigraphic resolution

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

Size class: mesofossils

Preservation: original calcite, replaced with 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 4527: 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

Anthozoa
Scleractinia - Micrabaciidae	Micrabacia sp. Micrabacia sp. Milne-Edwards 1849 stony coral Micrabacia spp.
Bivalvia
Arcida - Parallelodontidae	Nemodon cf. grandis Nemodon cf. grandis Wade 1926 clam Nemodon cf. Nemodon grandis Wade - originally entered as "Nemodon cf. grandis"
Arcida - Arcidae	Striarca cuneata Striarca cuneata clam Striarca cuneata Gabb
Ostreida - Gryphaeidae	Gryphaeostrea vomer Gryphaeostrea vomer Morton 1828 oyster Gryphaeostrea vomer Morton
Pectinida - Pectinoidae	Camptonectes (Camptonectes) bubonis Camptonectes (Camptonectes) bubonis Stephenson 1941 scallop Camptonectes (Camptonectes) bubonis (
Pectinida - Anomiidae	Anomia (Anomia) ornata, Anomia (Anomia) argentaria Anomia (Anomia) ornata Gabb 1876 jingle Anomia (Anomia) ornata Gabb Anomia (Anomia) argentaria Morton 1833 jingle Anomia (Anomia) argentaria Morton
Pectinida - Limidae	Lima (Lima) sp. Lima (Lima) sp. Bruguiére 1796 file clam Lima (Lima) sp.
Pectinida - Entoliidae	Syncyclonema simplicius Syncyclonema simplicius scallop Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
Carditida - Crassatellidae	Crassatella vadosa Crassatella vadosa Morton 1834 clam Crassatella vadosa vadosa Morton
Cardiida - Cardiidae	Trachycardium eufaulensis Trachycardium eufaulensis Conrad 1860 cockle Trachycardium eufaulensis (Conrad)
Cardiida - Tellinidae	Tellinimera buboana, Tellinimera gabbi, Liothyris cf. carolinensis Tellinimera buboana tellin clam Tellinimeria buboana Stephenson - originally entered as "Tellinimeria buboana" Tellinimera gabbi tellin clam Tellinimeria gabbi Gardner - originally entered as "Tellinimeria gabbi" Liothyris cf. carolinensis Conrad 1875 tellin clam Liothyris cf. L. carolinensis (Con - originally entered as "Liothyris cf. carolinensis"
Cardiida - Veneridae	Cyprimeria depressa Cyprimeria depressa venus clam Cyprimeria depressa Conrad
Cardiida - Mactridae	Cymbophora appressa, Cymbophora wordeni Cymbophora appressa clam Cymbophora appressa (Gabb) Cymbophora wordeni clam Cymbophora wordeni (Gardner)
Nuculida - Nuculidae	Nucula percrassa Nucula percrassa nut clam Nucula percrassa Conrad
Gastropoda
Cerithioidea - Turritellidae	"Turritella (Sohlitella) bilira" = Haustator bilira, Turritella sp. "Turritella (Sohlitella) bilira" = Haustator bilira Stephenson 1941 turret shell Turritella (Sohlitella) bilira (St Turritella sp. Lamarck 1799 turret shell Turritella sp.
Sorbeoconcha - Naticidae	Euspira sp. Euspira sp. Agassiz 1837 moon snail Euspira sp.
Neogastropoda -	Neogastropoda indet. Neogastropoda indet. Thiele 1929 snail Neogastropods indeterminate
Neogastropoda - Buccinidae	Stantonella sp. Stantonella sp. Wade 1926 true whelk Stantonella sp.