Karagandoceratoidea is an Early Carboniferous (Mississippian) superfamily within the

ammonoid Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...

order, Goniatitida, said to contain the Karagandoceratidae and Prodromitidae.taxonomy GONIAT-online
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Analysis

Shells are discoidal to lenticular. Adult stages are oxygonic, having acute venters, or have distinct keels. The ventral lobe may be either bifurcate or trifurcate (two or three pronged) and there is a tendency to increase the number of elements ontogenetically in the suture.

Taxonomic affinities

In the most recent classifications, W.M. Furnish, et al., 2009 and GONIAT theKaraganoceratoidea, is divided into the families Karagandoceratidae and Prodromitidae, with '' Karagandoceras'', ''Bartzschiceras'' and ''Masonoceras'' included in the Karagandocertidae. Previously, Deiter Korn (2006) included ''Karagandoceras'' along with ''Bartzschiceras'' and ''Masonoceras'' in the subfamily Karagandoceratinae which he included in the Prionoceratidae as part of the Prionocerataceae. Note retention of the—aceae ending. The Prodromitidae is included in the same superfamily. Members of the Karagandoceratidae are probably derived from different members of the Prioceratidae and therefore is an artificial grouping. The Prodromitidae, with which it is included, has been placed in the Prolecanitidain other classifications.Miller, Furnish, and Schindewolf 1957. Paleozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L. Geological Society of America and Univ of Kansas Press

References

Goniatitida superfamilies Tornoceratina {{Goniatitida-stub