†Cagliceras costulosum Merla 1934 (ammonite)
Cephalopoda - Ammonitida - Hammatoceratidae
Belongs to Cagliceras according to Merla 1934
Sister taxa: Cagliceras crassiventris, Cagliceras elaphum, Cagliceras enigmaticum, Cagliceras robustum, Cagliceras rotundiformis
Ecology: fast-moving nektonic carnivore