Where: Jefferson County, Colorado (39.8° N, 105.2° W: paleocoordinates 44.0° N, 71.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

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

• STRATIGRAPHIC RELATIONS: From the Smoky Hill Chalk Mbr of the Niobrara Fm, for which lithostratigraphic relations are not discussed. AGE: Not discussed in text, but Santonian on the basis of other Smoky Hill Mbr collections and stratigraphic position. STRATIGRAPHIC POSITION: From the uppermost of the Smoky Hill Mbr.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lime mudstone

Size classes: macrofossils, mesofossils

Collection methods: surface (float), surface (in situ),

• COLLECTOR: Unknown. REPOSITORY: Not stated in text, but possibly the University of South Dakota.

Primary reference: R. E. Stevenson. 1979. Attachment sites of a stalked cirriped in the Cretaceous Niobrara Sea. Proceedings of the South Dakota Academy of Science 58:21-29 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 160522: authorized by Austin Hendy, entered by Austin Hendy on 23.08.2014

Creative Commons license: CC BY (attribution)