†family Cyphornithidae Wemore 1928 (bird)
Aves - Pelecaniformes - Cyphornithidae
Full reference: A. Wemore. 1928. The systematic position of the fossil bird Cyphornis magnus. National Museum of Canada Bulletin 49:1-4
Parent taxon: Pelecanoidae according to O. P. Hay 1930
See also González-Barba et al. 2002, Howard 1972, Lambrecht 1933, Olson 1985, Wemore 1928, Wetmore 1940, Wetmore 1956 and Wetmore 1960
Sister taxa: none
Subtaxa: Palaeochenoides
Type: Cyphornis
Ecology: ground dwelling carnivore
Distribution: found only at Ashley River (Miocene Marl) (Miocene of South Carolina)