Genus: Tylosaurus MARSH, 1872
Etymology:

Species: proriger (COPE, 1869) MARSH, 1872

Referred material:

BELL & BARNES, 2007

Locality:?

Horizon?

Biostratigraphy:?

Age?

Material:

GSM 1: Fragmentary specimen.

Note: Has fragmentary remains of Clidastes sp in its stomach region.

 

MARTIN & BJORK, 1987

Locality: Soske Ranch Locality, SDSM V8120, Fall River County, South Dakota.

Horizon: Bammon Ferruginous Member of the Pierre Shale.

Biostratigraphy:

Age: Campanian Stage, Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

SDSM & T (SDSM) 10439: Fragmentary skull and skeleton.

Note: Has stomach contents of Platecarpus tympaniticus, Hesperornis sp, shark and fish.

 

STERNBERG, 1918, EVERHART, 2004

Locality: South side of (Twin) Butte Creek, 15 miles southeast of Russell Springs, Logan County, Kansas.

Horizon: Smoky Hill Chalk Member, Niobrara Chalk Formation.

Biostratigraphy:

Age: Late Santonian to Early Campanian Stage, Middle Senonian Subepoch, Uppermiddle Gulf Epoch, Late Cretaceous.

Material:

USNM 8898: Nearly complete specimen.
Note: With stomach contents of partially digested polycotylid plesiosaur bones.
Note: Gastroliths were found.

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Species: nepaeolicus (COPE, 1874) MERRIAM, 1894

Referred material:

BELL & BARNES, 2007

Locality: Near Terlingua, Big Bend Region, Brewster County, Texas.

Horizon: San Vicente Member, Boquillas Formation.

Biostratigraphy:

Age: Upper Coniacian Stage, Lowermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

MRM KB-M-3: Skull and skeleton.

Note: Has stomach contents of two size classes of Platecarpus af. P. plainfrons and the shark Ptychodus mortoni.