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Hildoceras bifrons Bruguiere 1792 (ammonite)

Cephalopoda - Ammonitida - Hildoceratidae

PaleoDB taxon number: 273116

Alternative combination: Ammonites bifrons

Synonyms: Ammonites hildensis Young and Bird 1822 (no. 269668), Ammonites walcoti Sowerby 1815 (no. 273774), Hildoceras angustisiphonatum Prinz 1904 (no. 183224)

Belongs to Hildoceras according to D. Delsate and R. Weis 2010

Sister taxa: Hildoceras (Lillia), Hildoceras ameuri, Hildoceras apertum, Hildoceras bastiani, Hildoceras caterinii, Hildoceras crassa, Hildoceras crassum, Hildoceras graecum, Hildoceras laticosta, Hildoceras lusitanicum, Hildoceras semipolitum, Hildoceras sublevisoni, Hildoceras tethysi

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): width 20.1, diameter 78.4, shell width 16.4, shell diameter 62.4