Sohl and Koch OFR # 812 (Cretaceous of the United States)

Also known as Hondo Cr; USGS # 7678

Where: Medina County, Texas (29.4° N, 99.1° W: paleocoordinates 35.3° N, 77.7° 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, calcareous sandstone

Size class: mesofossils

Preservation: original calcite, replaced with 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 4535: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Vertebrata indet. Lamarck 1801
Fish parts
Cephalopoda
 Ammonitida - Sphenodiscidae
"Sphenodiscus lenticularis" = Sphenodiscus lobatus
"Sphenodiscus lenticularis" = Sphenodiscus lobatus Tuomey 1856 ammonite
Sphenodiscus lenticularis (Owen)
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
indeterminate gastropods
 Neogastropoda -
Neogastropoda indet. Thiele 1929 snail
Neogastropods indeterminate
Bivalvia
 Nuculanida - Nuculanidae
Nuculana sp. Link 1807 pointed nut clam
Nuculana sp.
 Nuculanida - Malletiidae
Malletia longfrons clam
Malletia longfrons (Conrad)
 Nuculida - Nuculidae
Nucula sp. Lamarck 1799 nut clam
Nucula sp.
 Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876 jingle
Anomia (Anomia) ornata Gabb
Anomia (Anomia) argentaria Morton 1833 jingle
Anomia (Anomia) argentaria Morton
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
Ostrea sp.
 Arcida - Arcidae
Striarca cuneata clam
Striarca cuneata Gabb
 Cardiida - Cardiidae
Trachycardium sp. Mörch 1853 cockle
Trachycardium sp.
 Cardiida - Veneridae
Aphrodina (Aphrodina) tippana venus clam
Aphrodina (Aphrodina) tippana (Con
 Carditida - Astartidae
Astartemya fentressensis clam
Astartemya fentressensis Stephenso