Order †Goniatitida Rank Family | Superfamily †Cyclolobaceae | |
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Cyclolobidae: Goniatitid Ammonoidea belonging to the Cyclolobaceae with thickly discoidal to subgloblar shells with a small but open unbilicus and ammonitic sutures with numerous lobes that have subparallel sides.
The Cyclolobidae is one of three families of the Superfamily Cyclolobaceae; an extinct group of ammonoid cephalopods from the Late Paleozoic
References
Cyclolobidae Wikipedia(Text) CC BY-SA