Where: Trego County, Kansas (38.8° N, 100.0° W: paleocoordinates 40.8° N, 65.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Coniacian (89.3 - 85.8 Ma)

• Southwestern Trego County, where only the lower (upper Coniacian) part of the Smoky Hill Chalk crops out (e.g., see Hattin, 1982).

• bed-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified chalk

Size class: macrofossils

Collection methods: Repository: University of Kansas (KUVP)

Primary reference: K. Shimada. 2008. New anacoracid shark from upper Cretaceous Niobrara Chalk of western Kansas, U.S.A. Journal of Vertebrate Paleontology 28:1189-1194 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 213409: authorized by Matthew Clapham, entered by Matthew Clapham on 31.08.2020

Creative Commons license: CC BY (attribution)