ammonites
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Dichotomites Koenen 1909 (ammonite)

Cephalopoda - Ammonoidea - Polyptychitidae

PaleoDB taxon number: 14769

Alternative spelling: Polyptychites (Dichotomites)

Synonym: Ringnesiceras (Elleficeras) Kemper and Jeletzky 1979 (taxon 143474)

Parent taxon: Polyptychitinae according to P. Alsen 2006

Sister taxa: Hertleinites, Polyptychites

Subtaxa: Dichotomites (Dichotomites), Dichotomites (Prodichotomites), Dichotomites multicostatus, Polyptychites (Dichotomites) bidichotomoides

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Type: Ammonites bidichotomus

Ecology: fast-moving nektonic carnivore