The heaviest land animal of all time, the Brachiosaurus. The humerous-to-femur ratio was greater than 1.0 meaning the shoulders were higher than the hips. Other dinosaurs that were originally thought to be bigger or similar, such as Ultrasaurus or Supersaurus either turned out to be Brachiosaur or more related to the Diplodocus.
The second longest dinosaur is Argentinosaurus, at 140 ft long.
its a dinosaur it is the dinosaur with the longest name ever
AMPHICOELIAS
The longest dinosaur is believed to be Argentinasaurus, which could grow to 110 feet.
The dinosaur that lived the longest was the Brachiosaurus, which lived around 150 million years ago during the Jurassic period.
Diplodocus had the longest whip-like tail ever.
Liopleurodon
The tallest dinosaur ever discovered is a Sauroposeidon.However, this is not the longest or most massive dinosaur.
The longest dinosaur lenth is about 50 feet (15 meters) according to scientiests.
mamenchasaurus
It was not a dinosaur, but a plesiosaur and the longest plesiosaur. It could grow upto 15 m long.
The argentinosauraus is the biggest and longest.