Russell Springs: Turonian - Santonian, Kansas
collected by Mr M. C. Bonner, Leoti, Kansas <1957

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Plesiosauria - Polycotylidae
Polycotylidae indet. Williston 1908
similar to Trinacromerum
    = Dolichorhynchops osborni Williston 1902
Carpenter 1996
FHSM VP404 (skeleton with skull)
see common names

Geography
Country:United States State/province:Kansas County:Logan
Coordinates: 38.9° North, 101.2° West (view map)
Paleocoordinates:40.8° North, 66.9° West
Basis of coordinate:based on nearby landmark
Altitude:2964 feet
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
10 m.y. bin:Cretaceous 6
Key time interval:Turonian - Santonian
Age range of interval:93.90000 - 83.60000 m.y. ago
Stratigraphy
Geological group:Colorado Formation:Niobrara
Stratigraphic resolution:group of beds
Stratigraphy comments: from shale member which lies below the reddish chalk
Lithology and environment
Primary lithology:red chalk
Secondary lithology:blue calcareous "shale"
Includes fossils?Y
Lithology description: reddish-buff chalk, bluish chalky-shale
Environment:carbonate indet. Tectonic setting:cratonic basin
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Articulated whole bodies:all
Collection methods and comments
Collection methods:surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Collectors:Mr M. C. Bonner, Leoti, Kansas Collection dates:<1957
Metadata
Database number:31690
Authorizer:J. Alroy, R. Benson Enterer:E. Leckey, R. Benson
Modifier:P. Mannion Research group:vertebrate
Created:2003-05-22 13:02:26 Last modified:2023-08-02 07:48:46
Access level:the public Released:2003-05-22 13:02:26
Creative Commons license:CC BY
Reference information

Primary reference:
8538.5% 37700G. F. Sternberg and M. V. Walker. 1957. Report on a plesiosaur skeleton from western Kansas. Transactions of the Kansas Academy of Science 60:86-87 [J. Alroy/E. Leckey/E. Leckey]

Secondary references:

34117 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]