The Rostroconchia is a class of extinct molluscs dating from the early Cambrian to the late Permian. They were initially thought to be bivalves, but were later given their own class. They have a single shell in their larval stage, and the adult typically has a single, pseudo-bivalved shell enclosing the mantle and muscular foot. The anterior part ...
Found on
http://en.wikipedia.org/wiki/Rostroconchia
(from the article `mollusk`) ...into two branches called subclades: the supraclass Loboconcha (or Diasoma), including the suspension-feeding bivalves, and the infaunal ...
Found on
http://www.britannica.com/eb/a-z/r/69
No exact match found.
