ammonites
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Holcodiscoides (ammonite)

Cephalopoda - Ammonitida - Kossmaticeratidae

PaleoDB taxon number: 15003

Alternative spelling: Puzosia (Holcodiscoides)

Parent taxon: Marshallitinae according to C. W. Wright et al. 1996

Sister taxa: Eogunnarites, Eomadrasites, Eomarshallites, Hulenites, Maccarthyites, Marshallites, Mikasaites, Moffitites, Protokossmaticeras, Wellmanites, Yakushiceras, Yeharites

Subtaxa: Puzosia (Holcodiscoides) gorrilli

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Ecology: fast-moving nektonic carnivore