Dinosaur size
There were larger dinosaurs, but knowledge of them is based entirely on a small number of fragmentary fossils. Most of the largest herbivorous specimens on record were discovered in the 1970s or later, and include the massive titanosaur "Argentinosaurus huinculensis", which is the largest dinosaur known from uncontroversial evidence, estimated to have been and long. Some of the longest sauropods were those with exceptionally long, whip-like tails, such as the "Diplodocus hallorum" (formerly "Seismosaurus") and the 33- to 35-metre-long (108–115 ft) "Supersaurus". The tallest was the "Brachiosaurus".
Evolution of dinosaurs
With the exception of "Argentinosaurus" (included to fill a gap in time), these graphs show only the length of sauropods for whom near-complete fossil skeletons are known. It doesn't show other very large sauropods (see Dinosaur size#Sauropods) because these are only known from very incomplete skeletons. The ratio of skull length to body length is much higher in "Eoraptor" than in sauropods. The longest skull graphed is of "Nemegtosaurus", which is not thought be a particularly large sauropod. The skull of "Nemegtosaurus" was found near the headless skeleton of 11 metre (36 ft) long "Opisthocoelicaudia", and it has been suggested that they may be the same species, but see Nemegtosauridae.