Where: Logan County, Kansas (38.9° N, 100.8° W: paleocoordinates 41.8° N, 67.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 83.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified chalk

Size class: macrofossils

Collected by H. Shepherd & G. F. Sternberg in 1937

Collection methods: quarrying,

Primary reference: A. Bell and L. M. Chiappe. 2015. Identification of a new hesperornithiform from the Cretaceous Niobrara Chalk and implications for ecologic diversity among early diving birds. PLoS ONE 10(11):e0141690:1-34 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174624: authorized by Matthew Carrano, entered by Matthew Carrano on 19.11.2015

Creative Commons license: CC BY (attribution)