MNA Loc 262: Bed 21 (Cretaceous of the United States)

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

• coordinate stated in text

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

• The section has been measured and logged in detail; see Kirkland 1990 and 1991

•found at the base of the Neocardioceras juddii Zone

• bed-level stratigraphic resolution

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

Size classes: macrofossils, microfossils

Preservation: mold/impression, recrystallized, original calcite, 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: general faunal/floral analysis

PaleoDB collection 53343: authorized by Peter Harries, entered by Peter Harries on 08.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Caryophylliidae
"Stylotrochus sp." = Stylocyathus
"Stylotrochus sp." = Stylocyathus d'Orbigny 1849 stony coral
 Scleractinia - Oculinidae
"Archohelia dartoni" = Petrophyllia dartoni
"Archohelia dartoni" = Petrophyllia dartoni Wells 1933 stony coral