Eoacmaea is a genus of sea snails or true limpets, marine gastropod mollusks in the subclass Patellogastropoda, the true limpets.[2]

Eoacmaea
Shell of Eoacmaea profunda (syntype at MNHN, Paris)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Patellogastropoda
Superfamily: Lottioidea
Family: Eoacmaeidae
Genus: Eoacmaea
Nakano & Ozawa, 2007[1]
Type species
Patella profunda Deshayes, 1863

Eoacmaea is the only genus in the family Eoacmaeidae, belonging to the superfamily Lottioidea.

Etymology

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The generic name Eoacmaea is composed from the Eo that mean "early"[1] in Greek and Acmaea,[1] that is the genus of gastropod in family Lottiidae.

Taxonomy

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The family Eoacmaeidae was established by Nakano & Ozawa (2007)[1] for the genus Eoacmaea.

A cladogram based on sequences of mitochondrial 12S ribosomal RNA, 16S ribosomal RNA and cytochrome-c oxidase I (COI) genes showing phylogenic relations of Patellogastropoda by Nakano & Ozawa (2007)[1] and superfamilies based on World Register of Marine Species:[2]

Patellogastropoda
 Eoacmaeoidea 

Eoacmaeidae - only one genus Eoacmaea

Eoacmaea is the most basal group within Patellogastropoda[1] and Eoacmaea have diversified from other Patellogastropoda in Tethys Ocean in Triassic or Jurassic about 203 million years ago (limits are from 143 to 279 million years ago).[1]

Species

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Species within the genus Eoacmaea include:[1]

References

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  1. ^ a b c d e f g h Nakano T. & Ozawa T. (2007). "Worldwide phylogeography of limpets of the order Patellogastropoda: Molecular, morphological and palaeontological evidence". Journal of Molluscan Studies 73(1) 79-99. doi:10.1093/mollus/eym001.
  2. ^ a b MolluscaBase eds. (2020). MolluscaBase. Eoacmaea T. Nakano & Ozawa, 2007. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=456551 on 2020-11-03