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.