MNA Loc. 305: BM 13 (Cretaceous of the United States)

Where: Navajo County, Arizona (36.0° N, 110.9° W: paleocoordinates 37.3° N, 74.1° W)

• coordinate stated in text

When: Mancos Shale Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• Details of lithology in Kirkland 1990, 1991

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, bentonitic siliciclastic sediments

Size classes: macrofossils, microfossils

Preservation: mold/impression

Reposited in the NMMNH

Collection methods: bulk, quarrying,

Primary reference: J. I. Kirkland. 1996. Paleontology of the Greenhorn cylcothem (Cretaceous: late Cenomanian to middle Turonian) at Black Mesa, northeastern Arizona. New Mexico Museum of Natural History and Science Bulletin 9:1-131 [P. Harries/P. Harries/P. Harries]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55563: authorized by Peter Harries, entered by Peter Harries on 01.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Myalinida - Inoceramidae
"Inoceramus pictus" = Inoceramus (Inoceramus) pictus
"Inoceramus pictus" = Inoceramus (Inoceramus) pictus Sowerby 1829 clam
Cephalopoda
 Ammonitida - Acanthoceratidae
Neocardioceras juddii Barrois and Guerne 1898 ammonite
 Ammonitida - Hamitidae
Hamites simplex d'Orbigny 1842 ammonite
 Ammonitida - Baculitidae
Sciponoceras gracile Shumard 1860 ammonite
 Ammonitida - Anisoceratidae