DISTEFANICERAS, A NEW NAME FOR THE GENUS DISTEFANIA FUCINI, 1931 (MOLLUSCA, CEPHALOPODA), PREOCCUPIED BY DISTEFANIA CHECCHIA-RISPOLI, 1917 (CRUSTACEA). TAXONOMIC IMPLICATIONS FOR SOME LATE PLIENSBACHIAN-EARLIEST TOARCIAN HILDOCERATIDAE. Rivista italiana di Paleontologia e Stratigrafia, v. 116, n. 1, 31 mar.2010.