Full reference: G. Olshevsky. 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings 2:1-196
Parent taxon: Ornithischia according to G. Olshevsky 1992
Sister taxa: Alocodon, Amtosaurus, Apulosauripus, Archaeocursor, Armatosauria, Cairanoolithidae, Chilesaurus, Delatorrichnopodidae, Enoplosauria, Fabrosauridae, Fabrosaurus, Ferganocephale, Gregaripus, Gyrotrisauropus, Heterodontosauriformes, Komlosaurus, Krzyzanowskisaurus, Ligabueichnium, Minisauripus, Neornithischia, Parapredentata, Predentata, Prismatoolithidae, Tacuarembovum, Trimucrodon, Poposauria, Stegosauroidae
Subtaxa: none
Ecology: ground dwelling herbivore
Distribution: there are no occurrences of Lesothosauria in the database