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†family Protocycloceratidae Kobayashi 1935 (mollusk)

Cephalopoda - Ellesmerocerida

PaleoDB taxon number: 122461

Synonym: Rhabdocycloceratidae Zhuravleva 1994 (taxon 148625)

Parent taxon: Orthoceratoidea according to D.H. Evans 2011

Sister taxa: Brachycycloceratidae, Offleyoceratidae, Paraphragmitidae, Sactorthoceratidae, Slemmestadoceras

Subtaxa: Catoraphiceras, Catoraphinoceras, Cyptendoceras, Diastoloceras, Endocycloceras, Kyminoceras, Notocycloceras, Protocycloceras

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Ecology: nektobenthic carnivore