†family Hylonomidae Fritsch 1883 (tetrapod)
Parent taxon: Microsauria according to R. L. Moodie 1916
Sister taxa: Amblyodon, Archerpeton, Lysorophidae, Microbrachomorpha, Puertollanopus, Sauropleuridae, Stegopidae, Tuditanomorpha
Subtaxa: Hylerpeton
Type: Hylonomus
Ecology: