Coreospiridae is an extinct

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ...

molluscs of uncertain position

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. A ...

ally. They might be

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 G ...

s ( Gastropoda),

Helcionelloida Helcionelloida is an extinct group of ancient molluscs (phylum Mollusca). These are the oldest known conchiferan molluscs, that is, they had a mineralised shell. Some members of this class were mistaken for Monoplacophorans. The class was ere ...

, or they might be

Monoplacophora Monoplacophora , meaning "bearing one plate", is a polyphyletic superclass of molluscs with a cap-like shell inhabiting deep sea environments . Extant representatives were not recognized as such until 1952; previously they were known only from ...

2005 taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet 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. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 categorizes Coreospiridae in the superfamily

Scenelloidea Scenelloidea is an extinct superfamily of paleozoic molluscs of uncertain position ( Gastropoda, Helcionelloida, or Monoplacophora). Families Based on the taxonomy of the Gastropoda by Bouchet & Rocroi (2005) families in the Scenelloidea inc ...

within the Paleozoic molluscs of uncertain systematic position.

2006–2007 taxonomy

According to P. Yu. Parkhaev, the family Coreospiridae is in the family Helcionelloidea ( Wenz, 1938) in the order

Helcionelliformes Helcionellid or Helcionelliformes is an order of small fossil shells that are universally interpreted as molluscs, though no sources spell out why this taxonomic interpretation is preferred. These animals are first found about in the late Nema ...

(Golikov & Starobogatov, 1975) within the subclass Archaeobranchia (Parkhaev, 2001) in the class

(Peel, 1991).

Genera

Genera in the family Coreospiridae include: * '' Coreospira'' Saito, 1936 -

type genus In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nomina ...

of the family Coreospiridae * ''

Latouchella ''Latouchella'' is an extinct genus of marine invertebrate animal, that is considered to be a mollusk and which may be a sea snail, a gastropod. It is a helcionellid from the Tommotian epoch of what is now Siberia. Its tightly coiled, spira ...

'' * '' Owenella'' Ulrich & Scofield, 1897 ** '' Owenella antiquata'' (Whitfield, 1878) - synonym: ''Bellerophon antiquata'' Whitfield, 1878 Whitfield R. P. 1878. ''Preliminary descriptions of new species of fossils from the lower geological formations of Wisconsin''. Annual Report of the Wisconsin Geological Survey for 1877:50-89.

References

* Knight, J. B. (1947). ''Some new Cambrian bellerophont gastropods.'' Smithsonian Miscellaneous Collections. 106(17): 1−11, pls. 1−2 {{Taxonbar, from=Q5170291