Full reference: C. Lochman. 1966. Lower Ordovician (Arenig) faunas from the Williston Basin, Montana and North Dakota. Journal of Paleontology 40(3):512-548
Sister taxa: none
Type specimen: Its type locality is Shell Oil Co. Pine Field Nos. 1 and 43-22A, Deadwood Fm., Arenig, zones f and g,, which is in a Tulean lagoonal limestone in the Deadwood Formation of Montana.
Ecology: nektobenthic carnivore
• Ordovician of United States (2: Montana collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.