Didymoceras cochleatum
- Phylum: Mollusca
- Class: Cephalopoda
- Order: Ammonoidea
- Family: Nostoceratidae
- Genus: Didymoceras
- Species: Didymoceras cochleatum (Meek & Hayden)
Geological Range
Campanian
Paleogeographic Distribution
Arkansas to Wyoming to South Dakota
Stratigraphic Occurrences
- Campanian
- Annona Chalk (AR)
- Pierre Shale (SD) [Campanian]
- Pierre Shale (WY) [Campanian]
