Amaea decussata

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Amaea decussata
Amaea decussata 001.jpg
Shell of † Amaea decussata (specimen at MNHN, Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Family: Epitoniidae
Genus: Amaea
Species:
†A. decussata
Binomial name
†Amaea decussata
(Lamarck, 1804)
Synonyms [1]
  • † Acrilla decussata(Lamarck, 1804)
  • † Amaea (Acrilla) decussata(Lamarck, 1804) superseded combination
  • † Scalaria decussataLamarck, 1804 (original combination)

Amaea decussata is an extinct species of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae. [1]

Contents

Taxonomy

The name Scalaria decussata or Amaea decussata, attributed to Lamarck, 1804, has been used for a Recent species from the Indian Ocean. However, the true Amaea decussata(Lamarck, 1804) is a fossil from the Eocene of the Paris Basin. For the Recent species, see Amaea arabica . [1]

Description

The length of the shell attains 18 mm.

(Original description in Latin) An elongated, turreted, imperforate shell, marked by transverse striations and densely packed with fine longitudinal ribs. The whorls are tightly contiguous.

(Original description in French) The shell is elongated, turreted, with closely adjoining and rounded whorls, and has no umbilicus. Its longitudinal ribs are numerous, closely spaced, and not very elevated. Between them, one can see small but well-defined transverse striations, which intersect with the ribs, giving the shell an elegantly latticed appearance on its surface. [2]

Distribution

Fossils of this marine species were found in Eocene strata in the region Île-de-France, France.

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References

  1. 1 2 3 Amaea decussata (Lamarck, 1804) . 8 October 2024. Retrieved through: World Register of Marine Species .
  2. ↑ Lamarck, J.B.P.A. de (1804). "Suite des mémoires sur les fossiles des environs de Paris". Annales du Muséum d'Histoire Naturelle. 4: 213–214.


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