Rahul Sharma (Editor)

Craspedites

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Kingdom  Animalia
Family  Craspeditidae
Rank  Genus
Subclass  Ammonites
Superfamily  Perisphinctoidea
Phylum  Mollusca
Order  Ammonitida
Craspedites wwwfossilmuseumnetammonitepicturesCraspedites
Similar  Ammonites, Virgatites, Berriasella, Cadoceras, Aconeceras

Craspedites is a ammonoid cephalopod included in the Perisphinctaceae that lived during the Late Jurassic and Early Cretaceous, found in Canada, Greenland, Poland, and the Russian Federation.

Contents

Craspedites Craspedites Ammonite for sale

Diagnosis and range

Craspedites Craspedites Ammonite

Craspedites, described by Pavlow in 1892, is characterized by a small, up to about 5cm in diameter, smooth, essentially involute shell with simple ammonitic sutures. Whorl section is rounded, venter smooth; umbilicus small, exposing the dorsal portion of the inner whorls. Main sutural elements, primary saddles and lobes, are modified by small secondaries.

Craspedites Craspedites nodiger Jurassic Ammonite

Craspedites was thought to be restricted to the Upper Jurassic Tithonian until discovery of a new species, C. sachsi, described from the Berriasian age of Russia by A. E. Igolnikov in 2012, named in honour of paleontologist V.N. Sachs.

Species

Craspedites Craspedites Ammonite
  • C. ivanovi Gerasimov,
  • C. pseudofragilis Gerasimov, 1960
  • C. shulginae Alifirov, 2009
  • C. singularis
  • C. mosquensis Gerasimov, 1960
  • C. nodiger (Eichwald, 1868)
  • C. unshensis
  • C. jugensis Prigorovsky, 1906
  • C. kaschpuricus
  • C. canadensis Jeletzky, 1966
  • C. taimyrensis
  • C. planus
  • C. sachsi Igolnikov, 2012


  • Craspedites Craspedites Wikipedia

    References

    Craspedites Wikipedia


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