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 | |
"Inoceramus pictus" = Inoceramus (Inoceramus) pictus
"Inoceramus pictus" = Inoceramus (Inoceramus) pictus Sowerby 1829 clam | |
Cephalopoda | |
Neocardioceras juddii Barrois and Guerne 1898 ammonite | |
Hamites simplex d'Orbigny 1842 ammonite | |
Sciponoceras gracile Shumard 1860 ammonite | |
Anisoceras coloradoense ammonite |