1. (of conifers) having two needles

See also: simple, unsubdivided

• order Cordaitales
• order Corrodentia
• order Crocodilia
• order Crocodylia
• order Cuculiformes
• order Cycadales
• order Cycadofilicales
• order Cyclostomata
• order Cydippea
• order Cydippida
• order Cydippidea
• order Cypriniformes
• order Decapoda
• order Dermaptera
• order Dermoptera
• order Diapensiales
• order Dicranales
• order Dictyoptera
• order Dinocerata
• order Dinoflagellata
• order Dinornithiformes
• order Diptera
• order Discocephali
• order Ebenales
• order Edentata