Carinopelta

Carinopelta is a genus within Carinopeltidae, an extinct family of Cambrian[1] molluscs of uncertain position. It is in the superfamily Scenelloidea.

Carinopelta
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: †Helcionelloida
Order: †Helcionelliformes
Family: †Carinopeltidae
Parkhaev, 2013[1]
Genus: †Carinopelta
Parkhaev, 2013
Type species
Trilobella levis
Species
  • C. carinata (Parkhaev in Gravestock et al., 2001)[2]
  • C. levis (Vassiljeva, 1990)
Synonyms
Family
  • Igarkiellidae Vassiljeva, 1998
Genus
  • Trilobella Vassiljeva, 1990
  • Igarkiella Vassiljeva, 1998
Species
  • Trilobella levis Vassiljeva, 1990
  • Igarkiella levis (Vassiljeva, 1990)
  • Igarkiella carinata Parkhaev in Gravestock et al., 2001

Taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005[3] categorizes Igarkiellidae in the superfamilia Scenelloidea 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 Wenz, 1938 in the order Helcionelliformes Golikov & Starobogatov, 1975 within the subclass Archaeobranchia Parkhaev, 2001 in the class Helcionelloida 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.[4].

Homonymy

The type species was first described by N.I. Vassiljeva as "Trilobella" levis in 1990. The genus name was already preoccupied by "Trilobella" Woodward, 1924, itself a synonym of Triloba Vest, 1867[5] making Trilobella Vassiljeva a homonym. 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.[6] However the chosen genus name was again a homonym, already having been used by A.V. Rozova for the trilobite Igarkiella. 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.[1]

Etymology

Parkhaev coined the genus name Carinopelta as a combination of the Latin word carina meaning "keel" and pelta a type of oval shield used in Thrace.[1]


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References
  1. Parkhaev, P. Yu. (2013). "Carinopelta nom. nov. and Carinopeltidae nom. nov. - New substitute names for a genus and family of Cambrian gastropods". Paleontological Journal. 47 (4): 454. doi:10.1134/S0031030113040151.
  2. P. Yu. Parkhaev (2019). "Cambrian mollusks of Australia: taxonomy, biostratigraphy, and paleobiogeography". Stratigraphy and Geological Correlation. 27 (2): 181–206. doi:10.1134/S0869593819020072.
  3. Bouchet 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. ISBN 3-925919-72-4. ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278
  4. Parkhaev, P. Yu. (2002). "Phylogenesis and the system of the Cambrian univalved mollusks". Paleontological Journal. 36 (1): 25–36.
  5. WoRMS Trilobella B.B. Woodward, 1924
  6. 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.


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