rhyncholite

views updated May 08 2018

rhyncholite One of the beak-like structures which are considered to be the upper jaw structures of fossil cephalopods (Cephalopoda). They are approximately rhomboidal in shape, with a slightly concave lower surface. The anterior portion is termed the hood, the posterior portion the shaft. The first examples are found in the Carboniferous.

rhyncholite

views updated May 18 2018

rhyncholite One of the beak-like structures which are considered to be the upper-jaw structures of fossil cephalopods (Cephalopoda). They are approximately rhomboidal in shape, with a slightly concave lower surface. The anterior portion is termed the hood, the posterior portion the shaft. The first examples are found in the Carboniferous.

More From encyclopedia.com