Cerionidae

Cerionidae
Cerion chrysalis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Superfamily: Urocoptoidea
Family: Cerionidae
Pilsbry, 1901[1]
Diversity[2]
about 600 nominal species

Cerionidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Urocoptoidea.[3]

Pre-2008 taxonomy

According to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005),[4] the family Cerionidae is classified in the superfamily Orthalicoidea, within the informal group Sigmurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata. The family Cerionidae has no subfamilies.[4]

2008 taxonomy

Uit de Weerd (2008)[3] moved the Cerionidae to the newly established superfamily Urocoptoidea based on molecular phylogeny research.[3]

Fossil record

The oldest fossil cerionid is C. acherontis from the Upper Cretaceous Hell Creek Formation, in Montana, northwestern USA.[5] The second oldest record is the genus Brasilennea from the Brazilian Paleocene Itaboraí Basin, in Rio de Janeiro.[6]

Genera

Genera within the Cerionidae include:

References

  1. ^ Pilsbry H. A. (1901). Manual of Conchology (2)14(55): 174.
  2. ^ "Cerion: a web-based resource for Cerion research and identification". accessed 5 April 2011.
  3. ^ a b c Uit de Weerd D. R. (2008). "Delimitation and phylogenetics of the highly diverse land snail family Urocoptidae (Gastropoda, Pulmonata) based on 28S rRNA sequence data: A reunion with Cerion". Journal of Molluscan Studies 74: 317–329. doi:10.1093/mollus/eyn023.
  4. ^ a b c Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
  5. ^ Roth, B. & Hartman, J.H. 1998. A probable Cerion (Gastropoda: Pulmonata) from Uppermost Cretaceous Hell Creek Formation, Garfield County, Montana. PaleoBios 18: 16–20.
  6. ^ Salvador, R.B.; Rowson, B.; Simone, L.R.L. 2011. Rewriting the fossil history of Cerionidae (Gastropoda: Pulmonata): new family assignment of the Brazilian Palaeocene genus Brasilennea Maury, 1935. Journal of Molluscan Studies 77: 445–447. doi:10.1093/mollus/eyr021
  7. ^ Maury, C.J. 1935. New genera and new species of fossil terrestrial Mollusca from Brazil. American Museum Novitates 764: 1–15.
  8. ^ Thompson, F.G. 2011. Mexistrophia, a new genus of Cerionidae from Mexico (Gastropoda: Pulmonata: Urocoptoidea). Nautilus 125(4): 182–192.


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