What is the difference between a hadrosaur and an Iguanodon?

What is the difference between a hadrosaur and an Iguanodon?

The biggest physical differences between the two groups are body size (Iguanodontids were often much smaller and narrower in build than hadrosaurs), the narrow, almost horse-like skull of iguanodontids, and the thumb spike.

Is Edmontosaurus a hadrosaur?

Classification. Edmontosaurus was a hadrosaurid (a duck-billed dinosaur), a member of a family of dinosaurs which to date are known only from the Late Cretaceous.

How did Edmontosaurus protect itself?

Fighting Abilities Edmontosaurus Annectens was large but mostly defenseless, with no body armor to protect it from attack. Its size was its only defense; it was much larger than some of its predators, such as the raptor dinosaur Dromaeosaurus.

What is the biggest hadrosaur?

Shantungosaurus giganteus
More recent discoveries include gigantic hadrosaurs like Shantungosaurus giganteus from China. At 15 meters in length and nearly 16 metric tons in weight it is the largest known hadrosaur and is known from a nearly complete skeleton.

Are Iguanodonts hadrosaurs?

Iguanodon was the largest, best known, and most widespread of all the iguanodontids (family Iguanodontidae), which are closely related to the hadrosaurs, or duck-billed dinosaurs.

What is Edmontosaurus named after?

Lizard of Edmonton
The name means “Lizard of Edmonton” – named after the location it was found at. Edmontosaurus dinosaurs lived at the end of the Cretaceous time period, from around 72 to 65 million years ago. Edmontosaurus annectens was one of the last dinosaurs to ever exist.

How long ago did Edmontosaurus live?

83.6 million years ago – 66 million years ago (Campanian – Maastrichtian)Edmontosaurus / Lived

Are hadrosaurs defenseless?

A few others evolved lightweight bodies and extra-long legs that gave them the speed to reliably outrun predators. But one group has always appeared virtually defenceless: the hadrosaurs—better known as the duck-billed dinosaurs. “Hadrosaurs have no horns, no tusks, no big claws and no armour,” says Persons.

Does Edmontosaurus have a crest?

†Edmontosaurus regalis It is classified as a genus of saurolophine (or hadrosaurine) hadrosaurid, a member of the group of hadrosaurids which lacked large, hollow crests, instead having smaller solid crests or fleshy combs.

Is Shantungosaurus bigger than Edmontosaurus?

‭ ‬To put this in perspective,‭ ‬this currently makes Shantungosaurus the largest known hadrosaurid dinosaur,‭ ‬even larger than other well-known large hadrosaurs such as Edmontosaurus and Magnapaulia.

What was the smallest hadrosaur?

Although its name identifies it as a small hadrosaur, it is based on juvenile remains, and the size of the adult hadrosaur is unknown….Microhadrosaurus.