Olcostephanus
Temporal range: Valanginian-Early Cretaceous
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Fossil of Olcostephanus astierianus from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Olcostephanidae
Genus: Olcostephanus
Neumayr, 1875
Synonyms
  • Astieria Pavlow, 1892
  • Holcostephanus (Astieria) Pavlow, 1892
  • Lemurostephanus Thieuloy, 1977
  • Olcostephanus (Astieria) Pavlow, 1892
  • Rogersites Spath, 1924
  • Satoites Canta-Chapa, 1966

Olcostephanus is an extinct ammonoid cephalopod genus belonging to the family Olcostephanidae. These fast-moving nektonic carnivores[1] lived during the Cretaceous, from the upper Valanginian to the lower Hauterivian age.[2][1][3]

Species[1]

  • Olcostephanus astierianus (d'Orbigny, 1840)
  • Olcostephanus atherstoni Sharpe, 1856
  • Olcostephanus bakeri Imlay, 1937
  • Olcostephanus bosei Riedel, 1938
  • Olcostephanus delicatecostatus Haas, 1960
  • Olcostephanus detonii Rodighiero 1919
  • Olcostephanus filifer Imlay, 1937
  • Olcostephanus laticosta Gerth, 1925
  • Olcostephanus paucicostatus Imlay, 1937
  • Olcostephanus pecki Imlay, 1960
  • Olcostephanus popenoei Imlay, 1960
  • Olcostephanus prorsiradiatus Imlay, 1937
  • Olcostephanus quadriradiatus Imlay, 1938
  • Olcostephanus sanlazarensis Imlay, 1937

Distribution

Fossils of species within this genus have been found in the Cretaceous sediments of Antarctica, Argentina, Austria, Bulgaria, Chile, Colombia (Macanal Formation, Eastern Ranges),[4] Czech Republic, France, Hungary, Italy, Mexico, Morocco, Poland, Portugal, Romania, Slovakia, South Africa, Spain, Russia, United States, as well as in the Jurassic of Argentina.[1]

References

  1. 1 2 3 4 The Paleobiology Database
  2. Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda
  3. Wright C. W. with J.H. Callomon and M.K. Howarth (1996), Mollusca 4 Revised, Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et al. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, p.46.
  4. Piraquive et al., 2011, p.204

Bibliography

  • Piraquive, Alejandro; Juan Sebastián Díaz; Tomas Cuéllar; Germán Pardo, and Andreas Kammer. 2011. Reactivación Neógena de estructuras de rift del Cretácico Temprano asociadas con la Falla de Chámeza, Pajarito, Boyacá (Colombia): evidencias tectónicas y bioestratigráficas. Geología Colombiana 36. 197-216. Accessed 2017-08-04.
  • Wright C.W. with J.H. Callomon and M.K. Howarth (1996). "Mollusca 4 Revised: Cretaceous Ammonoidea". In Roger L. Kaesler (ed.). Treatise on Invertebrate Paleontology Part L. Vol. 4. Boulder, Colorado and Lawrence, Kansas: The Geological Society of America & University of Kansas Press. p. 46 via Internet Archive.


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