Panpulmonata is a taxonomic 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 and slugs in the clade Heterobranchia

Heterobranchia

Heterobranchia, the heterobranchs or Euthyneura, is a taxonomic clade of snails and slugs, which includes species from the sea, the land and freshwater; marine, aquatic and terrestrial gastropod mollusks....

 within the clade Euthyneura

Euthyneura

Euthyneura is a taxonomic clade of snails and slugs, which includes species from the sea, the land and freshwater; marine, aquatic and terrestrial gastropod mollusks in the clade Heterobranchia....

.

Panpulmonata was established as a new taxon

Taxon

|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...

 by Jörger et al. in October 2010.

The scientific meaning of the name "Pulmonata

Pulmonata

The Pulmonata, or "pulmonates", are an informal group of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills...

" and the corresponding major feature of those animals being "air-breathers" surely are not applicable to the novel panpulmonate groups Acochlidia, Sacoglossa

Sacoglossa

Sacoglossa, commonly known as the sacoglossans or the "sap-sucking sea slugs", are a clade of small sea slugs and sea snails, marine gastropod mollusks that belong to the clade Heterobranchia...

 and Pyramidelloidea

Pyramidelloidea

Pyramidelloidea is a superfamily of mostly very small sea snails, marine gastropod mollusks and micromollusks within the clade Panpulmonata.This is a voluminous taxon: above the species level close to 400 named taxa are referred to this gastropod superfamily.Pyramidelloidea has both fossil and...

, but also not for traditional pulmonate taxa such as Siphonarioidea

Siphonarioidea

Siphonarioidea is a taxonomic group of air-breathing sea snails or false limpets.- 2005 taxonomy :Siphonarioidea was previously a superfamily in the informal group Basommatophora within the Pulmonata.- 2010 taxonomy :...

 or Hygrophila

Hygrophila

Hygrophila, commonly known as the temple plants or hygros, is a genus of flowering plants in the family Acanthaceae. There are about 125 species, of which about 40 are aquatic. The genus has a pan-tropical distribution, with some members entering sub-tropical areas. It is one of only two genera in...

, most members of which lack permanently air-filled lungs. The term Panpulmonata has been chosen by Jörger et al. (2010) for continuity in terminology.

Panpulmonata consist of following taxa:

• Siphonarioidea
  Siphonarioidea
  Siphonarioidea is a taxonomic group of air-breathing sea snails or false limpets.- 2005 taxonomy :Siphonarioidea was previously a superfamily in the informal group Basommatophora within the Pulmonata.- 2010 taxonomy :...
  
  
• Sacoglossa
  Sacoglossa
  Sacoglossa, commonly known as the sacoglossans or the "sap-sucking sea slugs", are a clade of small sea slugs and sea snails, marine gastropod mollusks that belong to the clade Heterobranchia...
  
  
• Glacidorboidea
• Amphiboloidea
  Amphiboloidea
  Amphiboloidea is a taxonomic superfamily of air-breathing land snails.- 2005 taxonomy :According to the taxonomy of the Gastropoda , it is a superfamily in the informal group Basommatophora, within the Pulmonata....
  
  
• Pyramidelloidea
  Pyramidelloidea
  Pyramidelloidea is a superfamily of mostly very small sea snails, marine gastropod mollusks and micromollusks within the clade Panpulmonata.This is a voluminous taxon: above the species level close to 400 named taxa are referred to this gastropod superfamily.Pyramidelloidea has both fossil and...
  
  
• Hygrophila
• Acochlidiacea
  Acochlidiacea
  Acochlidiacea, common name acochlidians, are a taxonomic clade of very unusual sea snails and sea and freshwater slugs, aquatic gastropod mollusks within the large clade Heterobranchia...
  
   (mentioned as Acochlidia)
• Eupulmonata
  Eupulmonata
  The Eupulmonata is a taxonomic clade of air-breathing snails. The great majority of this group are land snails and slugs, but some are marine and some are saltmarsh snails that can tolerate salty conditions.-Linnean taxonomy:...
  
  : Stylommatophora
  Stylommatophora
  Stylommatophora is a taxon of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This taxon is currently considered to be a clade. It was previously regarded as an infraorder...
  
  , Systellommatophora
  Systellommatophora
  The Systellommatophora is a clade of primitive, air-breathing slugs according to the taxonomy of the Gastropoda...
  
  , Ellobioidea, Otinoidea
  Otinoidea
  Otinoidea is a superfamily of small, air-breathing sea snail and sea slugs, marine pulmonate gastropod mollusks....
  
  , Trimusculoidea.

Cladogram

A cladogram

Cladogram

A cladogram is a diagram used in cladistics which shows ancestral relations between organisms, to represent the evolutionary tree of life. Although traditionally such cladograms were generated largely on the basis of morphological characters, DNA and RNA sequencing data and computational...

 showing phylogenic relations of Heterobranchia as proposed by Jörger et al. (2010):

See also

• Changes in the taxonomy of gastropods since 2005#Heterobranchia
• Heterobranchia#2010 taxonomy
• Acochlidiacea#2010 taxonomy