Titanosauria

A compact Late Cretaceous titanosaur from Argentina whose associated bony plates and small dermal ossicles proved that some sauropods carried armour.

A giant armoured titanosaur from the final few million years of the Cretaceous, widespread across the southwestern United States.

An immense but very incompletely known titanosaur from Argentina's Huincul Formation. Its enormous back vertebrae and partial sacrum establish gigantic size, while most familiar full-body proportions remain reconstructed from relatives.

One of the largest and best-sampled giant titanosaurs, represented by more than 130 bones from at least six young adults buried during separate floods at one Patagonian quarry.

An enormous Patagonian titanosaur represented by an exceptionally informative partial skeleton, with a famous but still debated body-mass estimate.