During his time, an internal calcareous shell in the shape of a slightly bend, hollow cone grows inside of the body of these animals which remains after their death. Since also extant slugs ...

Land slugs, known locally by various names such as "banana-dried-like slug" or simply "land slug," are gastropods that have completely lost their shells ... had to rely on internal organ analysis ...

Called Shishania aculeata, the new fossil reveals that the earliest molluscs (animals that do not have a backbone) were flat, shell-less slugs covered ... Shishania show an internal system of ...

That group of animals includes conchs, whelks, scallops, sea slugs, nautiluses and giant clams — all on display in the new permanent exhibit. Plus mollusks that either have internal shells ...

He said it's likely a sea hare, which has an internal shell or a side gill, or a sea slug with no shell. "They don't have jaws and they wouldn't go after any people. They're strictly hunting for ...

Exceptional fossils with preserved soft parts reveal that the earliest mollusks were flat, armored slugs without shells ... The spines of Shishania show an internal system of canals that are ...