Where: Trego County, Kansas (38.9° N, 100.3° W: paleocoordinates 42.1° N, 66.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithology not reported

Size class: macrofossils

Collected by G. F. Sternberg in 1911; reposited in the YPM

Collection methods: surface (in situ),

Primary reference: L. M. Lambe. 1914. Report of the vertebrate palaeontologist. Summary Report of the Geological Survey Department of Mines for the Calendar Year 1912 1305:397-403 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 188487: authorized by Matthew Carrano, entered by Matthew Carrano on 05.09.2017

Creative Commons license: CC BY (attribution)