FHSM VP-2495 locality, Trego County (Cretaceous of the United States)

Also known as Tylosaurus kansasensis paratype

Where: Trego County, Kansas (38.9° N, 100.1° W: paleocoordinates 40.9° N, 66.0° W)

• coordinate based on political unit

When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Coniacian (89.3 - 85.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; chalk

Size class: macrofossils

Collected by R. Zakrzewski in 1969

Primary reference: M. J. Everhart. 2005. Tylosaurus kansasensis, a new species of tylosaurine (Squamata, Mosasauridae) from the Niobrara Chalk of western Kansas, USA. Netherlands Journal of Geosciences — Geologie en Mijnbouw 84(3):231-240 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118152: authorized by Philip Mannion, entered by Philip Mannion on 06.10.2011, edited by Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

 Squamata - Mosasauridae
"Clidastes velox" = Clidastes propython, "Platecarpus coryphaeus" = Platecarpus tympaniticus, "Platecarpus ictericus" = Platecarpus tympaniticus, Tylosaurus sp., Tylosaurus kansasensis
"Clidastes velox" = Clidastes propython Cope 1869 mosasaur
About thirty vertebrae
"Platecarpus coryphaeus" = Platecarpus tympaniticus Cope 1869 mosasaur
MNHN 1894-14b, an almost complete skull; About twenty mixed bones including 9 caudal vertebrae and a mounted forelimb
"Platecarpus ictericus" = Platecarpus tympaniticus Cope 1869 mosasaur
Seven vertebrae
Tylosaurus sp. Marsh 1872 mosasaur
MNHN 1892-6, articulated near-complete specimen
Tylosaurus kansasensis Everhart 2005 mosasaur
FHSM VP-2495 - paratype - juvenile (disarticulated, near-complete skull, missing the premaxilla and the anteriormost portion of the vertebral column: 83 vertebrae)