It lived during the Late Triassic period (Norian stage) in what is now La Rioja Province, Argentina.

[3] Peter Galton was the next to use the name Coloradisaurus in 1990, which he credited to Lambert, when he gave the taxon a diagnosis in his review of prosauropods in The Dinosauria.

[8] A referred specimen (PVL 5904) is a partial skeleton including most of the dorsal vertebrae and parts of the pectoral and pelvic girdles and limbs.

[4][7][9] The top of the Los Colorados Formation has been dated to 213 Ma,[1] which would place Coloradisaurus in the Norian stage of the Late Triassic.

[13] Sauropoda Thecodontosaurus Saturnalia Anchisauridae Melanorosauridae Jingshanosaurus Yunnanosaurus Massospondylus Mussaurus Coloradisaurus "Gyposaurus" sinensis Lufengosaurus Euskelosaurus Plateosaurus Sellosaurus Below is a simplified cladogram after Müller (2020), showing its current position as a massospondylid.