Echinoidea - Clypeasteroida - Echinarachniidae
Synonym: Astrodapsis major Kew 1920
Full reference: W. B. Clark and M. W. Twitchell. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. United States Geological Survey Bulletin 54:1-341
Belongs to Astrodapsis according to C. A. Hall 1962
See also Clark and Twitchell 1915, Grant and Hertlein 1938 and Kew 1920
Sister taxa: Astrodapsis antiselli, Astrodapsis brewerianus, Astrodapsis cierboensis, Astrodapsis davisi, Astrodapsis diabloensis, Astrodapsis fernandoensis, Astrodapsis fresnoensis, Astrodapsis israelskyi, Astrodapsis jacalitosensis, Astrodapsis kewi, Astrodapsis pabloensis, Astrodapsis peltoides, Astrodapsis spatiosus, Astrodapsis whitneyi
Subtaxa: Astrodapsis arnoldi arnoldi Astrodapsis arnoldi crassus Astrodapsis arnoldi fresnoensis Astrodapsis depressus
Ecology: slow-moving semi-infaunal detritivore
Distribution:
• Pliocene of United States (1: California collection)
• Miocene of United States (6: California)
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.