Noun
titanosaurian (plural titanosaurians)
Any dinosaur of the genus Titanosaurus
During this time Triceratops was the major herbivore in the northern portion of its range, while the titanosaurian sauropod Alamosaurus "dominated" its southern range. Source: Internet
There is evidence that other non-theropod dinosaurs, like Patagonian titanosaurian sauropods, also nested in large groups. Source: Internet