MNA Loc. 344: shale facies, upper ss, Dakota (Cretaceous of the United States)

Where: Navajo County, Arizona (35.7° N, 110.8° W: paleocoordinates 37.1° N, 74.1° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• Collection comes from the upper Cenomanian Euomphaloceras septemseriatum subzone of the Sciponoceras gracile Zone

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified, sandy sandstone

Size class: macrofossils

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 53509: authorized by Peter Harries, entered by Peter Harries on 10.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Mytilida - Mytilidae
? Mytilus ? sp. Linnaeus 1758 mussel