22.5 km east of Fort Wallace (Cretaceous to of the United States)

Also known as Polycotylus latipinnis paratype locality

Where: Kansas (38.9° N, 101.3° W: paleocoordinates 44.1° N, 69.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the YPM

Collection methods: quarrying

Primary reference: K. Carpenter. 1996. A review of short-necked plesiosaurs of the Western Interior, North America. Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen 201(2):259-287 [M. Carrano/H. Street]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117847: authorized by Roger Benson, entered by Roger Benson on 27.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Sauropterygia - Polycotylidae
Polycotylus latipinnis Cope 1869 plesiosaur
YPM 1125 (paratype, nearly complete postcranial skeleton and skull fragments)