Hackberry Creek Valley (Cretaceous of the United States)

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 C. H. Sternberg in 1905; reposited in the YPM

Collection methods: surface (in situ),

Primary reference: G. R. Wieland. 1909. Revision of the Protostegidae. The American Journal of Science, series 4 27(158):101-130 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167919: authorized by Matthew Carrano, entered by Matthew Carrano on 07.04.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Protostegidae
"Protostega copei n. sp." = Microstega copei
"Protostega copei n. sp." = Microstega copei Wieland 1909 sea turtle
YPM