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This Dinosaurs تصویر contains triceratops.

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posted by GabsSaw
Stegosaurus was the largest of the stegosaur group. Its fossils were found mainly in present-day Colorado, Utah, and Wyoming.

Like most of its group, Stegosaurus lived toward the end of the Jurassic period, about 150 mya.

Stegosaurus was about 25-30 feet long from nose to tail and probably weighed مزید than 2 tons.

Its most striking feature was the row of large, roughly triangular bony plates along its back.

The name Stegosaurus means "roof reptile". This is because it was first thought that its bony plates lay flat on its back, overlapping like the tiles on a roof.

It is now thought that the back...
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posted by GabsSaw
Dilophosaurus probably weighed about 1,100 pounds--as much as the biggest polar bears today.

Eustreptospondylus means "well-curved backbone". This is due to the arrangement of its spine sa seen in its fossils.

The remains of 60 Allosaurus were found in the Cleveland-Lloyd Dinosaur Quarry in Utah.

According to some experts, Ornitholestes may have had a slight ridge یا crest on its nose. Other experts disagree.

Oviraptor had two bony spikes inside its mouth that it may have used to crack open eggs when it closed its jaws.

On each foot, a Dromaeosaur had a large, curved claw that it could سوئنگ, جھول in...
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posted by GabsSaw
The First living things on earth were single-celled bacteria an cyanobacteria, also known as blue-green algae.

Blue-green algae emerged about 3,500 mya.(million years ago).
It contains chlorophyll and was the first living organism to use photosynthesis یا make energy using sunlight.

Over millions of years, the algae was able to produce enough oxygen to help مزید complex organisms to evolve.

True algae, which is regarded as a plant, evolved around 1,000 mya.

سے طرف کی 550 mya, multi celled plants began to appear, including seaweeds.

Algae and lichens were the first plants to appear on land.

Bryophyte plants emerged on land around 440 mya. Bryophytes are simple, seedless green plants.

Unlike vascular plants, which rvolved later, bryophytes cannot grow high above the ground because they do not have stems.
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