Off 33 mile road, near Roughlock Hill (Jurassic of the United States)

Where: Natrona County County, Wyoming (43.4° N, 106.7° W: paleocoordinates 37.7° N, 50.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Redwater Shale Member (Sundance Formation), Oxfordian (163.5 - 157.3 Ma)

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collection methods: Tate Museum, Casper, Wyoming

Primary reference: F. R. O'Keefe and W. Wahl. 2003. Current taxonomic status of the plesiosaur Pantosaurus striatus from the Upper Jurassic Sundance Formation, Wyoming. Paludicola 4(2):37-46 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119281: authorized by Roger Benson, entered by Roger Benson on 22.10.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• has yielded several ichthyosaur specimens
Show authors, comments, and common names
Reptilia
 Ichthyosauria -
Ichthyosauria sp.
Ichthyosauria sp. ichthyosaur
'several specimens'
 Plesiosauria - Cryptoclididae
Pantosaurus striatus
Pantosaurus striatus Marsh 1891 plesiosaur
UW 15938 (vertebral column and basioccipital), UW 3 (partial left forelimb)