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Sorbeoconcha is a
taxonomic Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...
clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
of
snail A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class Gastro ...
s, i.e.
gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
s, mainly
marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...
species with
gill A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...
s and opercula, within the
clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
Caenogastropoda Caenogastropoda is a taxonomic clade, a large diverse group which are mostly sea snails and other marine gastropod mollusks, but also includes some freshwater snails and some land snails. The clade is the most diverse and ecologically successfu ...
. The
taxon In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ...
Sorbeoconcha was named by
Winston Ponder Winston Frank Ponder (born 1941) is a noted malacologist born and educated in New Zealand who has named and described many marine and freshwater animals, especially micromolluscs. Education and career Ponder graduated with an MSc, PhD (1968) ...
and
David R. Lindberg David R. Lindberg (1948, U.S.A.) 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 journ ...
in 1997.


Taxonomy


1997 taxonomy

According to the older taxonomy by Ponder and Lindberg the suborders within the order Sorbeoconcha are: * Discopoda P. Fischer, 1884 * Murchisoniina Cox & Knight, 1960 *
Hypsogastropoda Hypsogastropoda is a clade containing marine gastropods within the clade Caenogastropoda. MolluscaBase eds. (2021). MolluscaBase. Hypsogastropoda. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=t ...
Ponder & Lindberg, 1997 *
Cerithiimorpha The Cerithiimorpha was a suborder of marine gastropods within the Sorbeoconcha. This taxon is no longer valid according to the current taxonomy of Bouchet and Rocroi. The previous classification system was as follows: * subclassis = Orthogast ...
Golikov & Starobogatov, 1975


2005 taxonomy

In the taxonomy by Bouchet & Rocroi (2005),Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . . 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 the
clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
Sorbeoconcha was declared a taxon of unspecified rank, within the clade
Caenogastropoda Caenogastropoda is a taxonomic clade, a large diverse group which are mostly sea snails and other marine gastropod mollusks, but also includes some freshwater snails and some land snails. The clade is the most diverse and ecologically successfu ...
. It comprises the
superfamily SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...
Cerithioidea, the superfamily
Campaniloidea The Campaniloidea is a superfamily of sea snails, marine gastropod mollusks. The Campaniloidea are unassigned in the clade Caenogastropoda. Taxonomy The following four families have been recognized in the taxonomy of Bouchet & Rocroi (2005) ...
, the informal group
Ptenoglossa The Ptenoglossa is an informal taxonomic group of sea snails. This group was considered paraphyletic or polyphyletic by Ponder and Lindberg (1997) in their classification of gastropod molluscs. The database WoRMS considers this suborder as b ...
and the clade
Neogastropoda Neogastropoda is an order of sea snails, both freshwater and marine gastropod molluscs. Description The available fossil record of Neogastropoda is relatively complete, and supports a widely accepted evolutionary scenario of an Early Creta ...
. The following families were not allocated to a superfamily: * †
Acanthonematidae Acanthonematidae is an extinct family of sea snails, marine gastropod mollusks in the clade Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade Cae ...
Wenz, 1938 * †
Canterburyellidae † Canterburyellidae is an extinct family of sea snails, marine gastropod mollusks in the clade Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade ...
Bandel, Gründel & Maxwell, 2000 * ''
Globocornidae Globocornidae is a family of gastropods belonging to the subterclass Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade Caenogastropoda. The taxon S ...
'' Espinosa & Ortea, 2010 * †
Prisciphoridae † Prisciphoridae is an extinct family of sea snails, marine gastropod mollusks in the clade Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade ...
Bandel, Gründel & Maxwell, 2000 The
World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ...
considers Sorbeoconcha an alternate representation of Caenogastropoda and gives the following reasoning: Sorbeoconcha should include erithioidea + Campaniloidea + all Hypsogastropoda (i.e. the remaining Caenogastropoda) see definition in Ponder & Lindberg, 1997: 225, not only erithioidea + Campaniloideaas suggested by the indent pattern in Bouchet & Rocroi. Neotaenioglossa Haller, 1892 suggested in Ruud Bank’s draft for Fauna Europaea is not retained because it would need severe emendation to remove Pyramidellids, Cerithioids, etc.. included in its original definition, and therefore would be too far from Haller's concept if it were to fit the concept of Sorbeoconcha. Although cladistically sound, the taxon Sorbeoconcha is skipped in the classification scheme because (1) ten years after its publication, the name still sounds unfamiliar to most and (2) it is not very helpful in the classification because it includes the bulk of Caenogastropoda (only keeping out small stem groups Abyssochrysidae, Provannidae, and the architaenioglossate taxa). This is not final, opinions are welcome.


References

{{Taxonbar, from=Q136817 Taxa named by Winston Ponder