A huge number of years prior, much sooner than there were any individuals, there were dinosaurs. Dinosaurs were one of a few sorts of ancient reptiles that existed amid the Mesozoic Time, the "Period of Reptiles."

The dinosaurs commanded the Earth in excess of 165 million years, however complexly went terminated 65 million years back. Scientistss study their fossil stays to research the stunning ancient universe of dinosaurs.

Dinosaurs were zone staying reptiles that walked around an erect stance. Their novel hip structure made their legs to emerge from under their bodies, and not sprawl out

from the side (like other reptiles ). At the point when dinosaurs initially

advanced from more primitive archosaurs, they were bipedal (walked on two legs). Much later, some dinosaur social affairs returned to a four-legged stance,

having back legs much greater than their front legs .

There were lots of different kinds of dinosaurs that lived at different times. Some were

HUGE , some were small . Some walked on two legs

, some walked on four . Some were speedy , and some

were slow and lumbering . Some were carnivores and some

were herbivores . Some were armor-plated , some had thick,

bumpy skin , some had horns , some even had primitive

feathers .

Nobody comprehends what colors or examples they were, the manner by which they sounded, how they acted, how they mated, or even how to tell whether a fossil originated from a male or a female dinosaur.

Dinosaurs abruptly got to be terminated around 65 million years back, toward the end of the Cretaceous period, which was a period of high volcanic and tectonic action. There are a ton of speculations why the termination happened. The most broadly acknowledged hypothesis is that

a space rock impact caused major climactic changes which the dinosaurs couldn't adapt to.

All that's left of the dinosaurs are fossils.

In spite of the fact that dinosaurs' fossils have been known since 1818, the term dinosaur (deinos = startling; sauros = reptile) was authored by the English anatomist Sir Richard Owen in 1842. The main three dinosaurs known at the time were Megalosaurus, Iguanodon, and Hylaeosaurus, huge dinosaurs.

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