''Carinopelta'' is a genus within

Carinopeltidae ''Carinopelta'' is a genus within Carinopeltidae, an extinct family (biology), family of Cambrian molluscs of uncertain position. It is in the superfamily Scenelloidea. Taxonomy The Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), taxonomy ...

, an extinct

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

of Cambrian

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

s of uncertain position. It is 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 inclu ...

Taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & 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 Igarkiellidae in the superfamilia

within the Paleozoic molluscs of uncertain systematic position. This family has no subfamilies. According to P. Yu. Parkhaev in 2007, the family is within the superfamily

Helcionelloidea 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 Nemak ...

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 Nemak ...

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

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 ...

Peel, 1991. ''Carinopelta'' is one of six genera which was placed into the family, along with '' Protoconus'', '' Rozanoviella'', '' Gonamella'', '' Mastakhella'', and '' Squamiconus'' by P. Yu. Parkhaev in 2002.

Homonymy

The type species was first described by N.I. Vassiljeva as ''"Trilobella" levis'' in 1990. The genus name was already

preoccupied In biology, a homonym is a name for a taxon that is identical in spelling to another such name, that belongs to a different taxon. The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the s ...

by ''"Trilobella"'' Woodward, 1924, itself a synonym of ''

Triloba ''Triloba'' is a genus of gastropods belonging to the family Clausiliidae. The species of this genus are found in the Balkans The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern E ...

'' Vest, 1867WoRMS ''Trilobella'' B.B. Woodward, 1924
/ref> making ''Trilobella'' Vassiljeva a

homonym In linguistics, homonyms are words which are either; '' homographs''—words that mean different things, but have the same spelling (regardless of pronunciation), or '' homophones''—words that mean different things, but have the same pronunciat ...

. In 1998 a new genus, ''Igarkiella'' was erected for the species to correct the homonym status and in 2001 a new family Igarkiellidae was named for the genus.Parkhaev P. Yu. 2001. ''Molluscs and siphonoconchs''. In: Alexander E. M. et al. (eds.) ''The Cambrian biostratigraphy of the Stansbury basin, South Australia''. Transactions of the Paleontological Institute, Russian Academy of Sciences, 282: 133-210, plates 24-54. Igarkiellidae on the page 161. However the chosen genus name was again a homonym, already having been used by A.V. Rozova for the trilobite ''

Igarkiella ''Igarkiella'' is an extinct genus of trilobite containing a single described species ''Igarkiella igarkaensis''. The species is known from fossils dating to 505 to 501 million years ago during the Cambrian Period The Cambrian ( ) is the ...

''. In 2013 a new genus and family name were erected by Parkhaev to fully remove the homonym status of the species. Due to the family name Igarkiellidae being based on the invalid genus name, it too was invalid for use and the replacement family name Carinopeltidae was given.

Etymology

Parkhaev coined the genus name ''Carinopelta'' as a combination of the Latin word ''carina'' meaning "keel" and ''

pelta A ''peltast'' (, ) was a type of light infantry originating in Thrace and Paeonia and named after the kind of shield he carried.Thrace Thrace (, ; ; ; ) is a geographical and historical region in Southeast Europe roughly corresponding to the province of Thrace in the Roman Empire. Bounded by the Balkan Mountains to the north, the Aegean Sea to the south, and the Black Se ...

References

Helcionelloida Cambrian molluscs {{paleo-mollusc-stub