ammonites
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Archboldiceras Leonova and Shilovsky 2007 (ammonite)

Cephalopoda - Ammonoidea - Spirolegoceratidae

PaleoDB taxon number: 148051

Full reference: T. B. Leonova and O. P. Shilovsky. 2007. Evolution of the Permian family Spirolegoceratidae (Goniatitida, Ammonoidea). Paleontological Journal 41(1):28-38

Parent taxon: Spirolegoceratinae according to W. M. Furnish et al. 2009

Sister taxa: Gobioceras, Spirolegoceras

Subtaxa: Archboldiceras lobulatum, Archboldiceras whitehousei

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Type: Uraloceras lobulatum

Ecology: fast-moving nektonic carnivore