The Diplodocus had long necks.
The heaviest dinosaur that likely has accurate weight estimates is the Argentinosaurus, a sauropod which weighed 73 tons. Argentinosaurus is also the longest known dinosaur, at 98 to 118 feet in length. It is unknown whether Argentinosaurus held its neck upright like Sauroposeidon or horizontally like Diplodocus, so determining which dinosaur was the tallest is difficult. Sauroposeidon, also a sauropod, is known to have held its neck upright, making it 56 feet tall and thus the tallest dinosaur according to current scientific knowledge.
The second longest dinosaur is Argentinosaurus, at 140 ft long.
its a dinosaur it is the dinosaur with the longest name ever
Argentinosaurus was the biggest hervivorous dinosaur that has a long neck.
AMPHICOELIAS
Amargasaurus.
The longest dinosaur is believed to be Argentinasaurus, which could grow to 110 feet.
I am not totally sure but I think the brontosaurus has the longest neck of all the dinosaurs.
Diplodocus had the longest whip-like tail ever.
his dinosaur neck
Liopleurodon
Yes. this dinosaur stood 11 feet tall and was named the unumbrellasaurus for its large flared out umbrella like neck. no jk