Cephalopoda - Ammonitida - Graphoceratidae

Synonyms: Ancolioceras, Cypholioceras Buckman 1899, Manselia Buckman 1899

Parent taxon: Leioceratinae according to M. K. Howarth 2013

Sister taxa: Canavarella, Costileioceras, Cylicoceras, Staufenia

Subtaxa: Leioceras comptum

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Ecology: fast-moving nektonic carnivore