Olcostephanus

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]

Olcostephanus
Temporal range: Valanginian-Early Cretaceous
~139.8–130.0 Ma
Fossil of Olcostephanus astierianus from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ammonitina
Superfamily:
Perisphinctoidea
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

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]

gollark: There are also different WiFi standards for packing higher data rates into whatever frequency range, some of which work, I think, by using several streams at different frequencies combined.
gollark: 2.4GHz and 5GHz are different, er, frequencies, though stuff doesn't run at exactly those frequencies but generally around them.
gollark: That's not really quite accurate.
gollark: You mean 5GHz WiFi or 5G the unneceesary mobile standard?
gollark: RFTools has a builder block thing which can copy areas if you feed in the items, which makes the difficult bit just autoproducing all the items involved, which other mods can do okayishly.

References
  1. The Paleobiology Database
  2. Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda
  3. C. W. Wright 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


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.