Kosmoceras

Kosmoceras
Temporal range: Callovian
Kosmoceras pronaie
Scientific classification
Kingdom: Animalia
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Stephanocerataceae
Family: Kosmoceratidae
Genus: Kosmoceras
Waagen, 1865

Kosmoceras is a moderately evolute ammonite genus from the upper Callovian (Middle Jurassic) of Europe with a simple apterure and irregular ribbing interrupted by an irregular row of lateral tubercles. Strong ventral tubercles are separated by a smooth depression running along the rim.

Kosmocers belongs to the Sephanocerataceae and is the type genus for the Family Kosmoceratidae and for the subfamily Kosmoceratinae. Kosmoceras spinosum Waagen is the type species.

Lobokosmoceras and Gulielmicerashave been regarded as subgenera of Kosmoceras. Gulielmites is a fine-ribbed variety of Kosmoceras jason

Species

This genus includes more than 100 species, including:

References

This article is issued from Wikipedia - version of the 6/5/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.