Echinoidea - Clypeasteroida - Echinarachniidae
Full reference: C. D. Wagner. 1974. Fossil and recent sand dollar echinoids of Alaska. Journal of Paleontology 48(1):105-123
Belongs to Echinarachnius according to C. D. Wagner 1974
Sister taxa: Echinarachnius alaskense, Echinarachnius andersoni, Echinarachnius astrodapsoides, Echinarachnius brewerianus, Echinarachnius newcombei, Echinarachnius parma, Echinarachnius plafkeri
Type specimen: USNM 181144. Its type locality is Bear Lake, Unga Fm., which is in a Miocene marine horizon in the Unga Formation of Alaska.
Ecology: slow-moving semi-infaunal detritivore
Distribution:
• Pliocene of United States (1: Alaska collection)
• Miocene of United States (2: Alaska)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.