Where: Navajo County, Arizona (36.6° N, 110.5° W: paleocoordinates 37.8° N, 73.5° W)
• coordinate stated in text
• small collection-level geographic resolution
When: upper sandstone Member (Dakota Formation), Late/Upper Cenomanian (99.6 - 93.5 Ma)
• Stratigraphic details in Kirkland 1990, 1991
•Collection comes from the upper Cenomanian Metoicoceras mosbyensis Zone
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified, sandy sandstone and lithified, shelly/skeletal shale
Size classes: macrofossils, microfossils
Preservation: mold/impression, recrystallized
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 53503: authorized by Peter Harries, entered by Peter Harries on 10.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Cephalopoda | |
"Kummeloceras sp." = Kummelonautilus
"Kummeloceras sp." = Kummelonautilus Matsumoto 1984 nautiloid | |
Bivalvia | |
Parvilucina juvenis clam | |
Fulpia pinguis clam | |
Crassostrea soleniscus oyster | |
Nuculana mutuata pointed nut clam |