D11301. Big Burro Mountains (northwest side) (Cretaceous of the United States)

Where: New Mexico (32.7° N, 108.6° W: paleocoordinates 33.7° N, 72.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Burroceras clydense ammonoid zone, Colorado Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the USGS, USNM

Primary reference: W. A. Cobban, S. C. Hook, and W. J. Kennedy. 1989. Upper Cretaceous rocks and ammonite faunas of southwestern New Mexico. New Mexico Bureau of Mines and Mineral Resources, Memoir 45:1-137 [L. Bulot/L. Bulot/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 230855: authorized by Pete Wagner, entered by Pete Wagner on 22.07.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Hamitidae
 Ammonitida - Vascoceratidae
? Microdiphasoceras sp. Cobban et al. 1989 ammonite
Microdiphasoceras novimexicanum Cobban et al. 1989 ammonite
Vascoceras "sp. A" Choffat 1898 ammonite
Vascoceras "sp. B" Choffat 1898 ammonite
Vascoceras gamai Choffat 1898 ammonite
Vascoceras barcoicense Choffat 1898 ammonite
Vascoceras barcoicense exile
 Ammonitida - Acanthoceratidae
Kamerunoceras sp. Reyment 1954 ammonite
Burroceras clydense Cobban et al. 1989 ammonite
Paraburroceras minutum Cobban et al. 1989 ammonite
Pseudaspidoceras pseudonodosoides Choffat 1898 ammonite
 Ammonitida - Placenticeratidae
Placenticeras sp. Meek 1876 ammonite
Placenticeras cumminsi Cragin 1893 ammonite
Bivalvia
 Myalinida - Inoceramidae