†subfamily Grambergiinae Popov 1961 (ceratite)
Cephalopoda - Ceratitida - Longobarditidae
Parent taxon: Longobarditidae according to A. S. Dagis 1987
Sister taxa: Czekanowskitinae, Dalmatites, Groenlanditinae, Longobarditinae, Noetlingitinae
Subtaxa: none
Ecology: nektonic carnivore
Distribution: there are no occurrences of Grambergiinae in the database