USGS 07550 (Cretaceous of the United States)

Also known as Cut of Texas and new Orleans R. R., 1 mile east of Gastonia, 4 miles E of Crandall, Kaufman County;

Where: Kaufman County, Texas (32.6° N, 96.3° W: paleocoordinates 37.9° N, 73.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Neylandville Marl Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; calcareous claystone

• 12 feet of greenish-gray calcareous clay (marl), weathering to yellowish subsoil

Size class: mesofossils

Reposited in the USGS

• L. W. Stephenson 1911

Primary reference: L. W. Stephenson. 1941. The larger invertebrate fossils of the Navarro group of Texas. The University of Texas Publication 4101:1-625 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7497: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Baculitidae
Baculites claviformis Stephenson 1941 ammonite
Baculites claviformis Stephenson
Bivalvia
 Pholadida - Corbulidae
Caestocorbula crassiplica Gabb 1860 clam
Corbula crassiplica Gabb
 Pectinida - Anomiidae
Anomia tellinoides jingle
Anomia tellinoides Morton
Anomia argentaria Morton 1833 jingle
Anomia argentaria Morton
 Ostreida - Ostreidae
Ostrea panda oyster
Ostrea panda Morton
 Ostreida - Flemingostreidae
Ambigostrea tecticosta oyster
Ostrea tecticosta Gabb
 Ostreida - Gryphaeidae
Pycnodonte mutabilis oyster
Gryphaea mutabilis Morton
Exogyra cancellata oyster
Exogyra cancellata Stephenson
"Exogyra costata" = Exogyra (Exogyra) costata Say 1820 oyster
Exogyra costata Say