†Calstevenus arcturus Yancey 1973 (tusk shell)
Click image to enlarge. Click to access iDigBio record.
Scaphopoda - Gadilida - Gadilidae
Full reference: T. E. Yancey. 1973. A new genus of Permian siphonodentalid scaphopods, and its bearing on the origin of the Siphonodentaliidae. Journal of Paleontology 47(6):1062-1064
Belongs to Calstevenus according to T. E. Yancey 1978
See also Yancey 1973
Sister taxa: none
Type specimen: USNM 179130, a shell. Its type locality is CHS 1J-2, Buck Mountain Section, which is in an Artinskian marine horizon in the Riepetown Formation of Nevada.
Ecology: slow-moving shallow infaunal deposit feeder
Distribution:
• Permian of United States (6: Nevada collections)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.