1972  Zadelsdorfia Weyer: 344.
     1995  Acutimitoceras (Follimitoceras) Ruan: 348.

Type species: Imitoceras (Imitoceras) folliforme Ruan, 1981, p.70 [OD].

Ruan 1995 established the subgenus Acutimitoceras (Follimitoceras) for Gattendorfiidae with short U-shaped, sometimes pouched  ventral lobe and a pair of long pointed adventitious lobes, both characters common among species of Zadelsdorfia Weyer, 1972.