Adrianitoidea

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Adrianitoidea is an extinct superfamily of ammonoid cephalopods that lived from the Middle Pennsylvanian to the Middle Permian period. It is part of the animal kingdom, Mollusca phylum, Cephalopoda class, Ammonoidea subclass, Goniatitida order, Goniatitina suborder, and the Adrianitoidea superfamily (named by Schindewolf in 1931). The main family is Adrianitidae; synonyms include Adrianitaceae. Their shells range from subdiscoidal to globose, with variable umbilici, and their sutures have 10 to 30 lobes, usually similar in size.