Goniatitidae is one of three families included in the ammonoid cephalopod superfamily Goniatitoidea, known from the Lower Mississippian to the Upper Permian. They have sutures that form 8 lobes and characteristically lack sculpture. The ventral lobe, as for the superfamily, is bifurcated.
References
- Miller, Furnish, and Schindewolf 1957. Paleozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L Ammonoidea. Geologocial Society of America and Univ of Kansas Press.
- Goniatitidae Paleo db 9/07/13
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