Ch Chamoussetia Chanasia Changhsingoceras Cheiloceras Cheloniceras Cheltonia Chesapeakiceras Chetaites Chioceras Chiotites Choffatia Choffaticeras Chondroceras Choristoceras Christioceras Christophoceras Chumazites thumb|right|325px|Artysta Heinrich Harder's sportretował życie amonitów.
Ci Cibolaites Cibolites Cicatrites Cirroceras
Cl Cladiscites Clambites Cleistosphinctes Cleoniceras Clinolobus Clionitites Clioscaphites Clistoceras Cloioceras Cluthoceras Clydomphalites Clydoniceras Clydonites Clymenia Clymenoceras Clypeoceras
Co Coahuilites Cobbanites Cobbanoscaphites Cochloceras Cochleiferoceras Cochlocrioceras Coeloceltites Coeloceras Coeloderoceras Coilopoceras Colchidites Collectoceras Collignoniceras Collignonites Collina Collotia Colombiceras Coloradoscaphites Columbites Concavites Conlinoceras Constileioceras Convoluticeras Cordubiceras Coroceras Corongoceras Coroniceras Coronites Costaclymenia Costidiscus Costileioceras Costimitoceras Cottreauites Couloniceras Cowtoniceras