The largest dinosaur was definitely a sauropod, or long necked, quadrupedal, herbivore. However, mass estimates can be tricky with dinosaurs. The largest were either Amphicoelias (known from poorly preserved remains, so the estimate of 100 to 150 tons may not be accurate), Antarctosaurus (known from incomplete remains, but may have weighed 69 to 80 tons), or Argentinosaurus (50 to 73 tons).
The Sauropodomorphs dinosaur was the largest of the prosauropod dinosaurs.
The most tallest and strongest plant eating dinosaur was the Argentinosaurus. It was believed to be the largest land animal which had ever lived.
The largest dinosaur is Amphicoelias, at 200 ft long.
Apparently, Argentinosaurus is the largest dinosaur discovered so far. There is always a chance that an even larger dinosaur may be discovered - so updating the current accepted dinosaur facts.
Triceratops
The crocodile/alligator
The largest dinosaur name is Micropachycepahalosaurus. The shortest is Minmi.
It is difficult to know exactly which dinosaur had the largest heart. It is generally agreed upon that the Barosaurus had the largest heart, weighing more than two tons.
The Dinosaur.
Ultrasaurus
T-Rex
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