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Calycoceras (Calycoceras) naviculare Mantell 1822 (ammonite)

Cephalopoda - Ammonitida - Acanthoceratidae

PaleoDB taxon number: 298853

Alternative combinations: Ammonites navicularis, Calycoceras (Calycoceras) navicularis, Calycoceras naviculare

Synonyms: Acanthoceras borgesi Douville 1931 (no. 333592), Calycoceras (Metacalycoceras) auspicum Anderson 1958 (no. 333596), Calycoceras (Metacalycoceras) stoliczkai Collignon 1937 (no. 333594), Calycoceras obrieni Young 1957 (no. 333595), Mantelliceras oregonense Anderson 1958 (no. 299480), Metacalycoceras boehmi Spath 1926 (no. 333591), Metacalycoceras grossouvrei Spath 1926 (no. 333590)

Belongs to Calycoceras (Calycoceras) according to M. Wilmsen and E. Nagm 2014

Sister taxa: Calycoceras (Calycoceras) boreale, Calycoceras (Calycoceras) dromense

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell 78.0 x 46.0, shell diameter 83.7