MNA Loc. 296: sandstone facies, upper sandstone, Dakota Fm (Cretaceous of the United States)

Where: Navajo County, Arizona (36.3° N, 109.8° W: paleocoordinates 37.4° N, 72.9° W)

• coordinate stated in text

When: upper sandstone Member (Dakota Formation), Late/Upper Cenomanian (99.6 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified sandstone

Size class: macrofossils

Preservation: mold/impression, replaced with calcite

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 55631: authorized by Peter Harries, entered by Peter Harries on 02.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Gryphaeidae
Rhynchostreon levis oyster
smooth form
Cephalopoda
 Ammonitida - Acanthoceratidae
Metoicoceras mosbyense Cobban 1953 ammonite