Supriya Ghosh (Editor)

Spironema (gastropod)

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Kingdom
  
Animalia

Superfamily
  
Naticoidea

Phylum
  
Mollusca

Class
  
Gastropoda

Family
  
Naticidae

Rank
  
Genus

†Spironema is a genus of extinct (Cretaceous) sea snails, marine gastropod mollusks in the family Naticidae, the moon snails.

Contents

Description

The American paleontologist Fielding Bradford Meek firstly defined this genus in 1864. He classified the genus in the family Littorinidae. He recognized two species Spironema bella and Spironema tenuilineata in 1864. These species were previously classified within the family Trochidae. Meek's diagnosis reads as follows:

Species

Species within the genus Spironema include:

  • Spironema bella (Conrad) - synonym: Tuba (?) bella Conrad, from Cretaceous of Alabama
  • Spironema tenuilineata (Meek & Hayden, 1856) - from Cretaceous of Dakota Territory, type species: Turbo tenuilineatus Meek & Hayden, 1856 - synonym: Turbo tenuilineata
  • Spironema perryi Stephenson - from Maastrichtian, Texas. Spironema cf. perryi is also known from the Upper Cretaceous, Cliff House Sandstone, Chaco Canyon, northwestern New Mexico.

    • References

    Spironema (gastropod) Wikipedia
    (Text) CC BY-SA