Elasmosaurus nobilis type locality, 4.8 km west of Jewell City (Cretaceous of the United States)

Where: Jewell County County, Kansas (39.7° N, 98.2° W: paleocoordinates 41.2° N, 63.9° W)

• coordinate based on nearby landmark

When: Fort Hays Limestone Member (Niobrara Formation), Early/Lower Coniacian (89.3 - 85.8 Ma)

• "Fort Hays limestones, or more basal strata of the Niobrara Cretaceous" (Williston 1906, p. 233)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by B. F. Mudge in 1874; reposited in the YPM

Primary reference: S. W. Williston. 1906. North American plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus. The American Journal of Science, series 4 21:221-236 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117844: authorized by Roger Benson, entered by Roger Benson on 27.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Sauropterygia - Elasmosauridae
"Elasmosaurus nobilis n. sp." = Thalassonomosaurus nobilis
"Elasmosaurus nobilis n. sp." = Thalassonomosaurus nobilis Williston 1906 elasmosaur
YPM 1640 (holotype, partial postcranium)