TxBureau 17302 (Cretaceous of the United States)

Also known as 2.1 miles northeast of the Methodist Church at Chatfield on the road to Hervey Lake, Navarro County.

Where: Navarro County, Texas (32.1° N, 96.5° W: paleocoordinates 36.9° N, 68.8° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Nostoceras hyatti ammonoid zone, Nacatoch Sand Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• Stephenson (1941) had this unit as Maastrichtian, Cobban and Kennedy (1995) have updated it to uppermost Campanian via ammonite zonation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• no entry

Size class: mesofossils

Collection methods: Gene Ross 1932

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 7440: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Stromboidea - Aporrhaidae
Pterocerella poinsettiformis snail
Pterocerella poinsettiformis Stephenson
Cephalopoda
 Ammonitida - Scaphitidae
Discoscaphites erucoideus ammonite
Discoscaphites erucoideus Stephenson
 Ammonitida - Nostoceratidae
Nostoceras stantoni aberrans Hyatt 1894 ammonite
Nostoceras stantoni aberrans Hyatt
Nostoceras stantoni prematurum Hyatt 1894 ammonite
Nostoceras stantoni prematurum Hyatt