Bank of the Missouri River (Cretaceous of the United States)

Also known as SDSM locality V2005–20; Hainosaurus neumilleri type locality

Where: Gregory County, South Dakota (43.2° N, 99.2° W: paleocoordinates 48.1° N, 67.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: DeGrey Member (Pierre Shale Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• See Martin et al. (2007) for revised stratigraphy of the Pierre Shale Group

• bed-level stratigraphic resolution

Environment/lithology: marine; concretionary sandstone and cherty/siliceous shale

• sandy concretion in the siliceous shale

Size class: macrofossils

Collected by P. Neumiller; reposited in the SDSM

Primary reference: J. E. Martin. 2007. A North American Hainosaurus (Squamata: Mosasauridae) from the Late Cretaceous of southern South Dakota. Geological Society of America Special Paper 427:199-207 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123581: authorized by Philip Mannion, entered by Philip Mannion on 26.01.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Squamata - Mosasauridae
Hainosaurus neumilleri n. sp. Martin 2007 mosasaur
SDSM 75705 - type (partial skull, paddle bones, and associated vertebrae)