?    1923  ? Imitoceras globosum Schindewolf: 336.
     1941  Imitoceras intermedium.-Librovich: 138, pl.25 fig.2,3
           (teste Petter,1959,p.249).
     1959  Prionoceras rotundum Petter: 249, pl.19
           fig.1-1a,2-2a,6, textfig.56I.
     1996  Rectimitoceras rotundum.-Becker: 34.