Elasmosaurus marshii type locality, Logan County: Late/Upper Coniacian - Early/Lower Campanian, Kansas
collected by Mr H. T. Martin 1889

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Sauropterygia - Elasmosauridae
Elasmosaurus marshii n. sp. Williston 1906
1 individual
nomen dubium belonging to Styxosaurus
YPM 1645 (holotype)
see common names

Country:United States State/province:Kansas
Coordinates: 39.0° North, 101.2° West (view map)
Paleocoordinates:44.1° North, 68.9° West
Basis of coordinate:based on nearby landmark
Period:Cretaceous Epoch:Late/Upper Cretaceous
Key time interval:Late/Upper Coniacian - Early/Lower Campanian
Age range of interval:89.30000 - 70.60000 m.y. ago
Stratigraphy comments: "Chalk of Logan County" (Williston 1906, p. 229).
"Niobrara Cretaceous" (Welles 1943, p. 189).
"Probably the Smoky Hill Chalk Member (Santonian-Campanian)" (Storrs 1999, p. 7)
Lithology and environment
Primary lithology: chalk
Includes fossils?Y
Environment:marine indet.
Modes of preservation:body
Size of fossils:macrofossils
Temporal resolution:snapshot
Collection methods and comments
Collection methods:selective quarrying
Reason for describing collection:taxonomic analysis
Collectors:Mr H. T. Martin Collection dates:1889
Database number:117842
Authorizer:R. Benson Enterer:R. Benson
Modifier:R. Benson Research group:vertebrate
Created:2011-09-27 20:57:35 Last modified:2011-10-17 04:06:20
Access level:the public Released:2011-09-27 20:57:35
Creative Commons license:CC BY
Reference information

Primary reference:

26148.ETE 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]

Secondary references:

38181 G. W. Storrs. 1999. An examination of Plesiosauria (Diapsida: Sauropterygia) from the Niobrara Chalk (Upper Cretaceous) of Central North America. Paleontological Contributions of the University of Kansas 11:1-15 [R. Benson/R. Benson]