canyon in Gove County (Cretaceous of the United States)

Where: Gove County, Kansas (38.0° N, 100.0° W: paleocoordinates 41.1° N, 66.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Deposited 87-82 Ma; recovered from below Marker Unit 10

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified chalk

• composed of "compacted skeletal remains (coccoliths) of planktonic, golden-brown algae (Chrysophyceae)"; deposited 200 miles from the eastern and 600 miles from the western shoreline of the Western Interior Seaway; deposited in water depths of 150 and 300 m

Size class: macrofossils

Collected in 1996-1997

Primary reference: M. J. Everhart. 2001. Revisions to the biostratigraphy of the Moasasauridae (Squamata) in the Smoky Hill Chalk Member of the Niobara Chalk (Late Cretaceous) of Kansas. Transactions of the Kansas Academy of Science 104(1-2):59-78 [M. Carrano/H. Street]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 99384: authorized by Matthew Carrano, entered by Hallie Street on 09.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Squamata - Mosasauridae
Tylosaurus proriger
Tylosaurus proriger Cope 1869 mosasaur
FFHM 1997-10