Tylosaurus proriger
- Phylum: Chordata
- Class: Sauropsida
- Order: Squamata
- Family: Mosasauridae
- Genus: Tylosaurus
- Species: Tylosaurus proriger Cope, 1869
Geological Range
Santonian to Campanian
Paleogeographic Distribution
New Mexico to Montana;Alabama, Mississippi
Stratigraphic Occurrences
- Campanian
- Niobrara Formation (KS)
- Pierre Shale (SD) [Campanian]
- Santonian
- Niobrara Formation (Smoky Hill) (KS)
- Niobrara Formation (NM)
- Unknown Stage
- Mooreville Formation (AL)
- Niobrara Formation (CO)
- Niobrara Formation (Smoky Hill Mbr) (KS)
- Pierre Shale (SD)
- Pierre Shale (WY)
- Selma Chalk (MS)
- Telegraph Creek Formation (MT)
