ammonites
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Osperleioceras Krimholtz and Tazikhin 1957 (ammonite)

Cephalopoda - Ammonitida - Hildoceratidae

Alternative spelling: Osperlioceras

Synonyms: Osperleioceras (Pseudopolyplectus), Pseudopolyplectus

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

Sister taxa: Cleviceras, Eleganticeras, Harpoceras, Ovaticeras, Polyplectus, Pseudolioceras, Sphenarpites, Taffertia, Tiltoniceras

Subtaxa: none

Ecology: fast-moving nektonic carnivore