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Douvilleiceras

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Douvilleiceras
Temporal range: Barremian-Cenomanian (typically Albian)[1]
~125–89 Ma
Douvilleiceras sp. – Albian of Madagascar
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ancyloceratina
Family:
Douvilleiceratidae
Genus:
Douvilleiceras

Species

See text

Douvilleiceras is a genus of ammonites from the Middle to Late Cretaceous. Its fossils have been found worldwide, in Africa, Asia, Europe, and North and South America.

Description

Shells of Douvilleiceras inaequinodum can reach a diameter of about 8–10 cm (3.1–3.9 in).[2][3]

Species

Species within the genus Douvilleiceras include:[4]

  • D. clementium
  • D. inaequinodum (Quenstedt, 1849)[5]
  • D. mamillare
  • D. mammillatum (Schlotheim, 1813)
  • D. meyendorffi
  • D. monile (Sowerby, 1836)
  • D. muralense Stoyanow 1949
  • D. offarcinatum
  • D. orbignyi Hyatt, 1903
  • D. scabrosum
  • D. solitae[6]
  • D. spiniferum (Whiteaves, 1876)

Distribution

Fossils of Douvilleiceras are found in the Cretaceous of Angola, Brazil, Canada, Colombia (Capotes Formation, Cundinamarca),[6] the Dominican Republic, Egypt, France, Iran, Japan, Madagascar, Mexico, Peru, South Africa, Switzerland, the former USSR, the United Kingdom, Alaska and Texas.[4] D. inaequinodum fossils have been found in Albian strata of France.[2][3]

  • D. clementium
    D. clementium
  • D. mammillatum
    D. mammillatum
  • D. inaequinodum
    D. inaequinodum
  • Reconstruction of D. mammillatum with Hoplites dentatus
    Reconstruction of D. mammillatum with Hoplites dentatus

References

  1. ^ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
  2. ^ a b Jsdammonites
  3. ^ a b Bertinjc
  4. ^ a b "Paleobiology Database - Douvilleiceras".
  5. ^ Jsdammonites.fr
  6. ^ a b Acosta & Garay, 2002, p.42

Bibliography

Further reading

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