PaleoDB taxon number: 355959
Alternative combinations: Worthenia arizonensis, Worthenia arizonica
Full reference: S. S. Winters. 1963. Supai Formation (Permian) of eastern Arizona. Geological Society of America Memoir 89:1-99
Type specimen: AMNH 28005/3:1, a shell. Its type locality is Cibecue Road, Locality 4, which is in a Kungurian shallow subtidal limestone in the Supai Formation of Arizona.
Ecology: facultatively mobile epifaunal suspension feeder
Average measurements (in mm): shell width 5.40, shell diameter 4.76