Amargatitanis
 Amargatitanis (meaning Amarga giant) is a genus of titanosaur sauropod dinosaur (a type of large long-necked quadrupedal herbivorous dinosaur) from the Barremian-age (Lower Cretaceous) La Amarga Formation of Neuquén Argentina. It is based on specimens MACN PV N51 53 and 34 which were collected in 1983 and consist of six tail vertebrae a shoulder blade a thighbone and an astragalus found associated. Among other details it had a relatively robust wide flat shoulder blade.