Orthoceras
Orthoceras
Eukaryota | Animalia | Mollusca | Cephalopoda | Orthoceratoidea | Orthoceratida | Orthoceratidae | Orthoceratinae | Orthoceras
COL:CS5HF | COL:N | COL:M2L | COL:7NF3H | COL:9GLX9 | COL:CDTDG | COL:7NWT4 | COL:C4XH5 | COL:7PBD3
(Chatton, 1925) Whittaker & Margulis, 1978 |  |  | Cuvier, 1795 | Teichert, 1967 | Kuhn, 1940 | F. McCoy, 1844 | F. McCoy, 1844 | Bruguière, 1789