1) Dinosaur 2) Titanosaurian 1) Titanosaurian 
Titanosaurs (members of the groups Titanosauria or Titanosauroidea) were a diverse group of sauropod dinosaurs, which included Saltasaurus and Isisaurus. It includes some of the heaviest creatures ever to walk the earth, such as Argentinosaurus and Puertasaurus—which are estimated to have weighed up to 90 tonnes (100 short tons). The group`s na....
[n] - amphibious quadrupedal herbivorous dinosaur with a long thin neck and whiplike tail
titanosaurian noun amphibious quadrupedal herbivorous dinosaur with a long thin neck and whiplike tail; of the Cretaceous mostly in the southern hemisphere