Where: San Juan County, New Mexico (36.5° N, 108.6° W: paleocoordinates 37.3° N, 71.6° W)

• coordinate stated in text

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

• "to time equivalent [to the Upper Cenomanian Hartland Shale Member, Greenhorn Formation] proximal offshore deposits (prodelta and equivilants; Danke et al.,1993) of the Tropic and Mancos Shales (Utah and Arizona; Fig. 2)."

Environment/lithology: prodelta; lithified, burrowed shale

Size classes: macrofossils, mesofossils, microfossils

Preservation: mold/impression, original aragonite, original calcite

Collection methods: bulk,

Primary reference: B. S. Sageman and C. R. Bina. 1997. Diversity and Species Abundance Patterns in Late Cenomanian Black Shale Biofacies, Western Interior, U.S. Palaios 12:449-466 [L. Ivany/P. Wall/P. Wall]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 44282: authorized by Linda Ivany, entered by Patrick Wall on 08.09.2004

Creative Commons license: CC BY (attribution)