ammonites
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†subfamily Helicancylinae Hyatt 1894 (ammonite)

Cephalopoda - Ammonitida - Acrioceratidae

PaleoDB taxon number: 342448

Parent taxon: Acrioceratidae according to C. Frau et al. 2017

Sister taxa: Brainaella, Dissimilites, Hoplocrioceras, Toxoceratoides

Subtaxa: Helicancylus

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Type: Helicancylus

Ecology: fast-moving nektonic carnivore