Ceratocephala orthoceras DC., Syst. Nat. 1: 231. 1817 Ceratocephala orthoceras DC., Syst. Nat. 1: 231. 1817has orthographic variant Ceratocephalus orthocerasTaxon for this nameCeratocephala orthoceras DC., Syst. Nat. 1: 231. 1817