Neritimorpha
Encyclopedia
Neritimorpha is a taxonomic grouping, an unranked clade
Clade
A clade is a group consisting of a species and all its descendants. In the terms of biological systematics, a clade is a single "branch" on the "tree of life". The idea that such a "natural group" of organisms should be grouped together and given a taxonomic name is central to biological...

 of snails, gastropod mollusks. This grouping includes land snails, sea 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, some deepwater 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, and also freshwater 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. This clade was previously known as the superorder Neritopsina.

1997 taxonomy

According to the taxonomy of the Gastropoda (Ponder & Lindberg, 1997)
Taxonomy of the Gastropoda (Ponder & Lindberg, 1997)
The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs...

 Neritopsina is a gastropod superorder in the subclass
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...

 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 ....

. The superfamily Palaeotrochoidea
Palaeotrochoidea
Palaeotrochidae is an extinct family of fossil sea snails, marine gastropod mollusks in the clade Neritimorpha according to the taxonomy of the Gastropoda .It is the only family in the superfamily Palaeotrochoidea....

 is contained within Neritopsina but its order placement is undetermined.

2005 taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005
Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

 categorizes Neritimorpha as a gastropod mollusk clade
Clade
A clade is a group consisting of a species and all its descendants. In the terms of biological systematics, a clade is a single "branch" on the "tree of life". The idea that such a "natural group" of organisms should be grouped together and given a taxonomic name is central to biological...

. It is one of the 6 highest clades in Gastropoda. It contains the clades Cyrtoneritimorpha
Cyrtoneritimorpha
Cyrtoneritimorpha is a clade of fossil sea snails, marine gastropod mollusks within the clade Neritimorpha.This order contains two extinct families: Orthonychiidae and Vltaviellidae....

, Cycloneritimorpha
Cycloneritimorpha
Cycloneritimorpha is a clade of land snails, freshwater snails, and sea snails. These are gastropod molluscs within the larger clade Neritimorpha...

, as well as Paleozoic
Paleozoic
The Paleozoic era is the earliest of three geologic eras of the Phanerozoic eon, spanning from roughly...

 Neritimorpha of uncertain position.

Clades (and uncertain position taxa) in Neritimorpha include:
  • Paleozoic
    Paleozoic
    The Paleozoic era is the earliest of three geologic eras of the Phanerozoic eon, spanning from roughly...

     Neritimorpha of uncertain position
  • † clade Cyrtoneritimorpha
    Cyrtoneritimorpha
    Cyrtoneritimorpha is a clade of fossil sea snails, marine gastropod mollusks within the clade Neritimorpha.This order contains two extinct families: Orthonychiidae and Vltaviellidae....

  • clade Cycloneritimorpha
    Cycloneritimorpha
    Cycloneritimorpha is a clade of land snails, freshwater snails, and sea snails. These are gastropod molluscs within the larger clade Neritimorpha...


See also

For a more detailed taxonomy of this group, please see Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)#Clade Neritimorpha (= Neritopsina)
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