Olcostephanus

Olcostephanus; Temporal range: Valanginian-Early Cretaceous; ~139.8–130.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Fossil of Olcostephanus astierianus from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific 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][edit]

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[edit]

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[edit]

^ ^a ^b ^c ^d The Paleobiology Database
^ Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda
^ 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.
^ Piraquive et al., 2011, p.204

Bibliography[edit]

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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[fa-1] The Paleobiology Database

[fb-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.

[Piraquive_p204-4] Piraquive et al., 2011, p.204

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Species[1][edit]

Distribution[edit]

References[edit]

Bibliography[edit]

Species^[1][edit]