Cephalopoda - Ammonitida - Oppeliidae

PaleoDB taxon number: 324529

Alternative combination: Hecticoceras (Lunuloceras) metomphalum

Belongs to Brightia according to A. Jeannet 1951

Sister taxa: Brightia brighti, Brightia lugeoni, Brightia salvadori, Brightia sveva

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell width 13.6, shell diameter 59.0