| Cyclolobidae Temporal range:  | |
|---|---|
|  | |
| Cyclolobus walkeri | |
| Scientific classification  | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Cephalopoda | 
| Subclass: | †Ammonoidea | 
| Order: | †Goniatitida | 
| Superfamily: | †Cycloloboidea | 
| Family: | †Cyclolobidae Schindewolf, 1931 | 
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.
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
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