North of McAllister Butte (Cretaceous of the United States)

Also known as McAllaster Butte; Globidens locality

Where: Logan County, Kansas (39.0° N, 101.4° W: paleocoordinates 44.8° N, 71.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Baculites asperformis ammonoid zone, Sharon Springs Member (Pierre Shale Formation), Middle Campanian (83.5 - 70.6 Ma)

• Collected from the Baculites asperformis zone (Gill, Cobban, and Schultz, 1972) in the upper level of the Sharon Springs Member (middle Campanian) of the Pierre Shale. It was located about 3 m below the contact with the Weskan Member, 95 cm below the lower of 2 layers of phosphate nodules (phosphatic shale unit of Gill, Cobban, and Schultz, 1972), and immediately above a layer of large septarian concretions.

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

• Shallow inland sea
• soft, fissile, bituminous shale

Size class: macrofossils

Collected in 1995

Primary reference: M. J. Everhart. 2008. Rare occurrence of a Globidens sp. (Reptilia; Mosasauridae) dentary in the Sharon Springs Member of the Pierre Shale (Middle Campanian) of Western Kansas. Fort Hays Studies, Special Issue 2:23-29 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132509: authorized by Philip Mannion, entered by Philip Mannion on 21.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Squamata - Mosasauridae
Globidens sp. Gilmore 1912 mosasaur
FHSM VP–13828 (nearly complete right dentary containing 13 tooth positions and 10 preserved teeth)