Full reference: J. A. Holman. 1976. Snakes from the Rosebud Formation (Middle Miocene) of South Dakota. Herpetologica 32:41-48
Type specimen: UNSM 04519, a set of vertebrae ("trunk vertebra"). Its type locality is Durnal Ranch Quarry, which is in a Geringian terrestrial horizon in the Gering Formation of Nebraska.
Ecology: fossorial carnivore
• Miocene of United States (1: Texas collection)
• Harrisonian of United States (1: Nebraska)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.