†unranked clade Diplodocidae Marsh 1884 (diplodocid)
PaleoDB taxon number: 319108
Full reference: O. C. Marsh. 1884. Principal characters of American Jurassic dinosaurs. Part VII. Diplodocidae, a new family of the Sauropoda. American Journal of Science 27:161-167
Parent taxon: Flagellicaudata according to P. D. Mannion et al. 2019
Sister taxa: Dicraeosauridae, Diplodocus lacustris
Subtaxa: Apatosaurinae, Dicraeosaurinae, Diplodocinae
Ecology: ground dwelling herbivore