Where: Sandoval County, New Mexico (35.3° N, 107.1° W: paleocoordinates 37.9° N, 73.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Prionocyclus hyatti ammonoid zone, Mancos Shale Formation, Middle Turonian (93.5 - 89.3 Ma)

• AGE: Middle Turonian, on the basis of ammonoid biostratigraphy; Prionocyclus hyatti zone.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary shale

Size class: macrofossils

Preservation: mold/impression

Collected by C.B. Hunt, H.R. Joesting, J.W. Wyckoff, G.F. Taylor, R.C. Becker; S.C. Hook, S.J. Frost in 1931; 1978; reposited in the USNM

Primary reference: W. A. Cobban and S. C. Hook. 1980. The Upper Cretaceous (Turonian) ammonite family Coilopoceratidae Hyatt in the Western Interior of the United States. United States Geological Survey Professional Paper 1192:1-28 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77803: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.01.2008, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)