Late Pliocene to Early Pleistocene; extinct.
South Florida to north Florida.
- Early Pleistocene
- Caloosahatchee Formation (S. FL)
- Caloosahatchee Formation (Bee Branch Member) (S. FL)
- Nashua Formation (N. FL)
- Late Pliocene
- Tamiami Formation (Murdock Station Member) (S. FL)
- Tamiami Formation (Pinecrest Beds) (S. FL)