Cyclolobidae

Cyclolobidae: Goniatitid Ammonoidea belonging to the Cycloloboidea with thickly discoidal to subglobular shells with a small but open umbilicus and ammonitic sutures with numerous lobes that have subparallel sides.

Cyclolobidae Temporal range: Middle Permian–Upper Permian PreꞒ Ꞓ O S D C P T J K Pg N
Cyclolobus walkeri
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Goniatitida
Superfamily:	†Cycloloboidea
Family:	†Cyclolobidae Schindewolf, 1931

The Cyclolobidae is one of three families of the Superfamily Cyclolobaceae; an extinct group of ammonoid cephalopods from the Late Paleozoic.

References

• Miller, A.K., Furnish, & Schindewolf. Paleozoic Ammonoidea in the Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geol Soc of Amererica and Univ of Kansas press; R,C. Moore,(ed).
• The Paleobiology Database 10/01/07