ammonites
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†subfamily Arietitinae Hyatt 1875 (ammonite)

Cephalopoda - Ammonitida - Arietitidae

PaleoDB taxon number: 204841

Synonym: Arnioceratidae Spath 1924 (taxon 100263)

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

Sister taxa: Agassiceratinae, Alsatitinae, Ammonites bisulcatus, Bartoliniceras, Hypasteroceratinae, Pseudotropitinae

Subtaxa: Arnioceras, Coroniceras, Guexiceras, Longziceras, Metarnioceras, Schreinbachites, Tmaegoceras, Vermiceras

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Ecology: fast-moving nektonic carnivore