Where: Boulder County, Colorado (40.2° N, 105.2° W: paleocoordinates 44.5° N, 71.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Smoky Hill Chalk Member (Niobrara Formation), Santonian (86.3 - 83.6 Ma)

• single bedding plane in the upper part of the "Middle Shale Unit"

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, pyritic, calcareous shale

Size class: macrofossils

Primary reference: E. G. Kauffman, P. J. Harries, C. Meyer, T. Villamil, C. Arango and G. Jaecks. 2007. Paleoecology of giant Inoceramidae (Platyceramus) on a Santonian (Cretaceous) seafloor in Colorado. Journal of Paleontology 81(1):64-81 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 97589: authorized by Wolfgang Kiessling, entered by Uta Merkel on 11.08.2010

Creative Commons license: CC BY (attribution)