ammonites
Callistadia bella Knight 1945 (snail)

Gastropoda - Murchisoniina - Gosseletinidae

Full reference: J. B. Knight. 1945. Some new genera of Paleozoic Gastropoda. Journal of Paleontology 19(6):573-587

Belongs to Callistadia according to R. L. Batten 1989

Sister taxa: Callistadia nittida, Callistadia punjabica, Callistadia qinglongensis, Callistadia qubuergaensis

Ecology: facultatively mobile epifaunal suspension feeder

Average measurements (in mm): shell 11.0 x 12.7, shell diameter 8.58