Plagiodontes

Plagiodontes is a recent genus of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropods in the family Odontostomidae.[2] Plagiodontes is sometimes considered a subgenus in the genus Cyclodontina. It occurs in tropical and sub-tropical regions of South America.[3]

Plagiodontes
Temporal range: Paleocene–Recent[1]
Plagiodontes_weyenberghii
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Orthalicoidea
Family:
Odontostomidae
Genus:
Plagiodontes

Doering, 1876
Type species
Helix dentata
Wood, 1828
Species

Fossil record

The fossil record of Plagiodontes extends back to the Brazilian Paleocene, with a supposed specimen of Plagiodontes dentatus found in Itaboraí Basin.[1] This same species has also been recorded from the Miocene of Uruguay and Miocene and Pleistocene of Argentina.[4][5][6]

Species

Species within the genus Plagiodontes include:

  • Plagiodontes dentatus (Wood, 1828) - fossil from Brazil, Uruguay and Argentina, recent from Argentina - type species of genus
  • Plagiodontes trahyrae - from Brazil
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References
  1. Salvador, R.B. & Simone, L.R.L. 2012. New fossil pulmonate snails from the Paleocene of Itaboraí Basin, Brazil (Pulmonata: Cerionidae, Strophocheilidae, Orthalicidae). Archiv für Molluskenkunde 141(1): 43-50. doi:10.1127/arch.moll/1869-0963/141/043-050
  2. Breure A. S. H. & Romero P. (2012). "Support and surprises: molecular phylogeny of the land snail superfamily Orthalicoidea using a three-locus gene analysis with a divergence time analysis and ancestral area reconstruction (Gastropoda: Stylommatophora)". Archiv für Molluskenkunde: International Journal of Malacology 141(1): 1-20. doi:10.1127/arch.moll/1869-0963/141/001-020.
  3. Simone, L.R.L. 2006. Land and Freshwater Mollusca of Brazil. EGB, Fapesp, São Paulo, Brazil. 390 p.
  4. Caorsi J. & Goñi J.C. 1958. Geologia Uruguaya. Boletín del Instituto Geológico del Uruguay, Montevideo, 37:1–73.
  5. Parodiz, J.J. 1969. The Tertiary Non-marine Mollusca of South America. Annals of the Carnegie Museum 40: 1–242.
  6. Morton, L.S. & Herbst, R. 1993. Gastrópodos del Cretácico (Formación Mercedes) del Uruguay. Ameghiniana, 30(4): 445–452.


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