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".
Turiasaurus
"Turiasaurus" is believed to be the largest dinosaur ever found in Europe, and is among the largest dinosaurs known. It was originally estimated at in length and with a weight of 40 to 48 tonnes, the combined weight of six or seven adult male elephants. More recent estimates suggest a length of in length, but a comparable weight of 50 tonnes. The length of its skull is 70 centimetres, which is not too large. According to the paleontologist Luis Alcalá, this is because a larger head might have caused "Turiasaurus" to break its neck.