Eogastropoda
Encyclopedia
Eogastropoda was a previously used taxonomic category of snail
s or gastropods, a subclass which was erected by Ponder
and Lindberg
in 1997. It was one of two great divisions (subclasses) of the class
Gastropoda
, the snail
s. The other subclass of gastropods was the Orthogastropoda
.
Eogastropoda were the more primitive of the two subclasses, representing a much older line of gastropods. This subclass contained all of the true limpet
s.
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
s or gastropods, a subclass which was erected by Ponder
Winston Ponder
Winston F. Ponder B.Sc, M.Sc, Ph.D, D.Sc. is a noted malacologist from New Zealand who has named and described many marine animals, especially micromolluscs. He is a graduate of the University of Auckland, New Zealand....
and Lindberg
David R. Lindberg
David R. Lindberg is an American malacologist and professor of integrative biology at the University of California, Berkeley. He is also the Curator for the University of California Museum of Paleontology and co-editor of the journal Molecular Systematics and Phylogeography of Mollusks.Much of his...
in 1997. It was one of two great divisions (subclasses) of the class
Class (biology)
In biological classification, class is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order...
Gastropoda
Gastropoda
The Gastropoda or gastropods, more commonly known as snails and slugs, are a large taxonomic class within the phylum Mollusca. The class Gastropoda includes snails and slugs of all kinds and all sizes from microscopic to quite large...
, the snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
s. The other subclass of gastropods was the Orthogastropoda
Orthogastropoda
Orthogastropoda was a major taxonomic groupings of snails and slugs, an extremely large subclass within the huge class Gastropoda according to the older taxonomy of the Gastropoda ....
.
Eogastropoda were the more primitive of the two subclasses, representing a much older line of gastropods. This subclass contained all of the true limpet
Limpet
Limpet is a common name for a number of different kinds of saltwater and freshwater snails ; it is applied to those snails that have a simple shell which is more or less conical in shape, and either is not spirally coiled, or appears not to be coiled in the adult snails.The name limpet is most...
s.
Orders
Orders within the Eogastropoda consisted of:- PatellogastropodaPatellogastropodaPatellogastropoda, common name true limpets and historically called Docoglossa, is a major phylogenetic group of marine gastropods, seen either as a clade or as a taxonomic order.-Taxonomy:Patellogastropoda was proposed by David R...
- EuomphalinaEuomphalinaEuomphalina, is a taxonomic order of extinct sea snails, marine gastropod mollusks, known from fossils. This order includes the extinct superfamilies Euomphaloidea, Macluritoidea, Ophiletoidea, and Platyceratoidea....
(fossil) - NeomphalidaNeomphalidaNeomphalidae is a family of specifically deepsea hydrothermal vent limpets included in the Vetigastropoda which is left as a clade in Bouchet & Rocroi, 2005...