Phenacoceratidae | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Goniatitida |
Superfamily: | †Dimeroceratoidea |
Family: | †Phenacoceratidae Wedekind, 1918 |
Genera[1] | |
Synonyms | |
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Phenacoceratidae is one of three families of the superfamily Dimeroceratoidea.[1] The family is placed in the order Goniatitida,[2] and was first named by Rudolf Wedekind in 1918 who treated the group as a subfamily.[3] The family was named for Phenacoceras, a junior synonym of Clymenoceras.[3] They are an extinct group of ammonoids,[1] which are shelled cephalopods related to squids, belemnites, octopodes, and cuttlefish, and more distantly to the nautiloids.[4] They were fast-moving free-swimming (nektonic) carnivores.[1]