†family Megalancosauridae Olshevsky 1991 (archosauromorph)
Full reference: G. Olshevsky. 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings 2:1-196
Parent taxon: Archosauromorpha according to S. Renesto 1994
Sister taxa: Archosauriformes, Azendohsaurus, Czatkowiella, Drepanosauridae, Mecistotrachelos, Noteosuchus, Prolacerta, Protorosauria, Rhynchosauria, Teraterpetidae, Trilophosauria, Trilophosauridae
Subtaxa: none
Ecology: