What is the name of the dinosaur that had plates on its back and spikes on its tail?

Answer 1

The plates were not sharp, per say, but I believe you're referring to Stegosaurus and its relatives. They had two parallel rows of large, bony plates on their backs. The plates were vertical, rather than lying flat on the back like paleontologists originally believed. They were also hexagonal in shape. Stegosaurus and its relatives were quadrupedal herbivores, whose small heads were low to the ground as a result of having much longer hind limbs than forelimbs.

Answer 2

The mamenchisaurus, from China, had a neck length of 32 feet; as long as a school bus.

Answer 3

Sauropods, including Apatosaurus, Brachiosaurus, Diplodocus, etc.

Answer 4

Ankylosaurs are covered in bony plates, which are effective protection against predators. Some had bony tail clubs that could be used as weapons, too.

Answer 5

Several different groups developed armor. The Stegosaurs, the Anklyosaurs and the Titanosaurs.

Answer 6

The brontosaurus

Answer 7

That was Stegosaurus.

Answer 8

Stegosaurus? Or its related species.

Answer 9

An Ankylosaurus.