Paleocadmus
Encyclopedia
Paleocadmus is a genus of radula known only from the Mazon Creek biota. It is only known from isolated fossils around a centimetre in length, and a few mm wide (in one instance associated with a ?beak), but its morphology aligns it with the nautiloid
s, or perhaps the bactritoids or belemnoids.
Nautiloid
Nautiloids are a large and diverse group of marine cephalopods belonging to the subclass Nautiloidea that began in the Late Cambrian and are represented today by the living Nautilus. Nautiloids flourished during the early Paleozoic era, where they constituted the main predatory animals, and...
s, or perhaps the bactritoids or belemnoids.