High Quality Content by WIKIPEDIA articles! The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi, is a system for classifying gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal Malacologia; it encompassed all known families of living slugs and snails, and also of fossil gastropods (including fossils that may or may not have been gastropods).