Zaraiskites

Zaraiskites is an extinct genus of ammonoid cephalopod that lived during the Tithonian.

Zaraiskites
Temporal range: Tithonian[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Family:
Perisphinctidae
Subfamily:
Virgatitinae
Genus:
Zaraiskites

Semenov, 1898

Zaraiskites has a ribbed evolute shell without tubercles. Inner whorls are with normal bifurcate or triplicate ribbing; outer whorl is with virgatotome ribbing with as many as seven secondary ribs taking off successively in front of each primary rib.

Related genera in the Virgatitinae include Acuticostites and Virgatites

Distribution

Only found at Kuibyshev Reservoir, Volga River, Russia.[2]

gollark: Plus you can store U+0000, which is technically a valid codepoint.
gollark: I think length prefixed ones are better for most use and ensuring safety.
gollark: utter bees.
gollark: Other contributors will also be accepted.
gollark: Well, if you people come up with more, I could do that.

References
Notes
  1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1โ€“560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
  2. "Paleobiology Database - Zaraiskites". Retrieved 2017-10-19.
Bibliography
  • W.J Arkell, et al., Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, 1957. Geological Society of America and University of Kansas Press.
  • V.V. Mitta, 1993. The Systematic Composition of the Middle Volgian Virgatitidae (Ammonoidea) of Central Asia. Paleontological Journal 27(4).


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