Rhymmoceratidae is one of six families of the Neoglyphioceratoidea superfamily. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloids.
| Rhymmoceratidae | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Goniatitida |
| Superfamily: | †Neoglyphioceratoidea |
| Family: | †Rhymmoceratidae Ruzhencev, 1957 |
| Genera | |
References edit
- The Paleobiology Database accessed on 10/01/07
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