Prionocyclus wyomingensis
- Phylum: Mollusca
- Class: Cephalopoda
- Order: Ammonoidea
- Family: Collignoniceratidae
- Genus: Prionocyclus
- Species: Prionocyclus wyomingensis Meek, 1876
Geological Range
Turonian to Coniacian
Paleogeographic Distribution
Texas to South Dakota
Stratigraphic Occurrences
- Coniacian
- Cody Shale (WY)
- Turonian
- Acadia Park Shale (TX)
- Boquillas Formation (TX)
- Carlile Shale (CO)
- Carlile Shale (KS)
- Carlile Shale (SD)
- Carlile Shale (Turner Sandy Member) (SD)
- Frontier Formation (WY)
- Mancos Shale (CO)
- Mancos Shale (NM)
- Unknown Stage
- Benton Shale (CO)
- Benton Shale (SD)
- Benton Shale (WY)
- Gallup Sandstone (NM)
