Which dinosaur was the biggest

So at the lower end of the range for Argentinosaurus , that would make Patagotitan the biggest animal ever to walk the Earth. Others argue, however, that a more conserative body mass range for Patagotitan is 50—55 tonnes ,—, lb. The debate, like the footsteps of these prehistoric giants, will inevitably rumble on for a long time…. The most likely Tallest dinosaur , meanwhile, is another sauropod — the lofty Sauroposeidon proteles below , which lived in the Early Cretaceous period.

Owing to an extraordinarily elongated neck, it could have towered as tall as 18 m 59 ft off the ground — about the same as four double-decker buses in a stack! As you could probably guess by now, the Longest dinosaur was yet another sauropod. Which species, again, is a matter of conjecture. Amphicoelias has to be a prime contender, though, given its estimated head-to-tail length of up to 60 m ft — more than twice that of a full-grown blue whale.

Elasmosaurus was the longest plesiosaur at up to 14 metres 46 ft long. Half of its length was its neck, which had as many as 75 vertebrae in it in comparison to neck vertebrae in humans. Elasmosaurus had four long, paddle-like flippers, a tiny head, sharp teeth in strong jaws, and a pointed tail. Plesiosaurs were not dinosaurs but were marine reptiles. It is believed that dinosaur extinction was part of a mass extinction brought about by two massive destructive events.

The first of these was the collision with the Earth of a meteorite landing in what is now the Yucatan Peninsula, of Mexico.

This was followed by an enormous volcanic eruption which split what is now India in half. At present over different species of dinosaurs have been identified and named.

However palaeontologists believe that there are many more new and different dinosaur species still to be discovered. So far species of dinosaurs have been discovered in Britain. Britain was an important area during much of the Mesozoic Era acting as a 'land bridge' between North America and Eurasia.

It became a hotspot for dinosaur evolution and migration. The dinosaur Museum has the skeleton of a Megalosaurus and the skull of an Iguanodon on display. The oldest known dinosaur so far discovered in Britain is Thecodontosaurus antiquus.

It was discovered near Bristol in but only now has funding been achieved to excavate the dinosaur. Thecondontosaurus was 2. It lived on the richly vegetated islands that were around that area in Triassic times about million years ago.

The first discovery of dinosaur remains in North America was made in by Ferdinand Vandiveer Hayden during his exploration of the upper Missouri River.

He discovered a small collection of teeth which were later described by Joseph Leidy in as belonging to Trachodon, Troodon, and Deinodon. Q: What was the speed of the fastest dinosaur? A: The fastest dinosaurs were probably the ostrich mimic ornithomimids, toothless meat-eaters with long limbs like ostriches.

They ran at least 25 miles per hour from our estimates based on footprints in mud. But that's just a guess and you don't run your fastest in mud. Q: What were the smallest and biggest eggs ever found?

A: The biggest dinosaur eggs we know are shaped like giant footballs and are about 19 inches long. They belong to a meat-eater from Asia called segnosaurus.

The smallest dinosaur eggs are just a few inches across and more tennis ball-shaped, and we don't know what dinosaur made them. Q: Which dinosaur has the longest neck? A: The longest necked dinosaur was the foot mamenchisaurus, a four-legged plant-eater from China. Its neck alone was 32 feet long — nearly as long as a school bus. Q: Which dinosaur was nicknamed "long neck"?

And which one really had the longest neck? A: "Long neck" is a term used in the movie The Land Before Time to refer to what they loosely drew as apatosaurus, also known as brontosaurus, by the looks of it. The longest necked dinosaurs were the giant plant-eaters, the sauropods which included apatosaurus and particularly mamenchisaurus.

That dinosaur, from China, had the longest neck of any animal ever, more than 33 feet long on a body about 85 feet long. This giant's neck was held up by 19 neck vertebrae and neck ribs the size of poster tubes.

Q: Which dinosaur had the biggest head? A: The biggest-headed dinosaur was torosaurus, "bull lizard," a horned dinosaur related to triceratops which lived in the American West 65 million years ago. It had a skull eight feet long, longer than any animal on land ever.

Q: Which Mesozoic period had the smallest dinosaur? A: The smallest dinosaurs were probably from the late Triassic and early Jurassic. That's where we find the smallest ornithischian dinosaurs so far. Dinosaurs got biggest in the late Jurassic and Cretaceous. Q: Did the ankylosaurus have the hardest shell? A: Ankylosaurs sure had hard shells, even on their eyelids! Hard to say which was hardest of any dinosaur though.

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