Karagandoceratidae

Karagandoceratidae
Temporal range: L Carb (Miss)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Goniatitida
Suborder: Tornoceratatina
Superfamily: Karagandocerataceae
Family: Karagandoceratidae
Librovich, 1957

The Karagondoceratidae is a small family of tornoceratin Goniatitida from the Lower Carboniferous (early Mississippian) which typifies the Karagandocerataceae in which it is included.

Karagandoceratids are characterized by discoidal to lenticular shells that are oxyconic or keeled in the adult and in which the ventral lobe of the suture is ontogenetically subdivided, either trifurcated or biburcated.

The known genera are Bartzschiceras, Karagandoceras, and Masonoceras, and possibly Voehringerites

References

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