Anaptychus
Anaptychus ({not transcribed}) , noun
[New Latin, from Greek {not transcribed} unfolding; 'ana` back + {not transcribed} to fold.]
(Paleontology) One of a pair of shelly plates found in some cephalopods, as the ammonites.
Anaptychus ({not transcribed}) , noun
[New Latin, from Greek {not transcribed} unfolding; 'ana` back + {not transcribed} to fold.]