Chromogisaurus

Chromogisaurus is an extinct genus of saturnaliine sauropodomorph which existed in Argentina during the Late Triassic (Carnian) period. It is from the Cancha de Bochas, Valle Pintado member of the Ischigualasto Formation It was a herbivore about in length, and was optionally quadrupedal.
Description.
"Chromogisaurus" was first named by Martín Daniel Ezcurra in 2010, and the type species is "Chromogisaurus novasi". The generic name is derived from Greek "chroma", "colour", and "gè", "earth", a reference to the Valle Pintado, the "Painted Valley". The specific name honours Fernando Emilio Novas. The holotype, PVSJ 845, was found in the Cancha de Bochas Member of the Ischigualasto Formation, dating to the Carnian. This makes "Chromogisaurus" one of the oldest known dinosaurs. The specimen consists of a partial skeleton lacking the skull, with elements of the front and hind limbs, as well as the pelvis and two caudal vertebrae.
A cladistic analysis by Ezcurra indicated that "Chromogisaurus" was a member of a clade basal sauropodomorphs, the Guaibasauridae, together with "Guaibasaurus", the disputed "Agnosphitys", "Panphagia" and "Saturnalia". Within Guaibasauridae, it forms a smaller clade with its sister taxon "Saturnalia", the Saturnaliinae.