Crassispira semicolon

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Crassispira semicolon
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Crassispira
Species:
C. semicolon
Binomial name
Crassispira semicolon
(Sowerby I, 1816)
Synonyms
  • † Crassispira (Crassispira) semicolon(Sowerby I, 1816)
  • † Drillia (Crassispira) inflexa(Lamarck, 1850)
  • † Pleurotoma inflexaLamarck, 1850
  • † Pleurotoma semicolonSowerby I, 1816

Crassispira semicolon is an extinct species of carnivorous sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. [1]

Contents

Subspecies: † Crassispira semicolon chameryensis (de Boury, 1899) (synonym: † Pleurotoma chameryensisde Boury, 1899) [2]

Description

The length of the shell attains 24.6 mm; its diameter 8.3 mm. It lived from roughly the Eocene period 47.8 - 41.3 million years ago, before having a last known appearance 3.60 - 2.59 million years ago, during the Cenozoic period.

Distribution

Fossils have been found in Pliocene and Middle Eocene strata off Norfolk, Great Britain; also in the Paris Basin and the Loire Basin, France

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References

  1. ↑ Worldwide Mollusc Species Data Base: Crassispira semicolon
  2. ↑ J.-M. Pacaud and J. Le Renard. 1995. Révision des Mollusques Paléogénes du Bassin de Paris. IV - Liste systématique actualisée. Cossmanniana 3(4):155-187


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