†unranked clade Diplodocimorpha Calvo and Salgado 1995 (sauropod)
Full reference: J. O. Calvo and L. Salgado. 1995. Rebbachisaurus tessonei sp. nov. a new Sauropoda from the Albian-Cenomanian of Argentina; new evidence on the origin of the Diplodocidae. GAIA 11:13-33
Parent taxon: Diplodocoidea according to P. D. Mannion and A. J. Moore 2025
See also Apesteguía 2007, Calvo and Salgado 1995, Mannion et al. 2019, Salgado et al. 2006, Salgado et al. 2004, Taylor and Naish 2005, Tschopp et al. 2015 and Wilson and Sereno 1998
Sister taxa: Amphicoelias, Haplocanthosaurus
Subtaxa: Flagellicaudata Rebbachisauridae
Ecology: ground dwelling herbivore