Dinosaurs

There were far too many plant eating dinosaurs to list, however, here are just a few of the most famous ones:

Stegosaurus

Apatosaurus (Brontosaurus)

Diplodocus

Brachiosaurus

Iguanodon

Edmontosaurus

Lambeosaurus

Parasaurolophus

Triceratops

Protoceratops

Remember - this is just to name a few!

carcharodontosaurus is one of the biggest meat eating dinosaurs.

carcharodontosaurus was as tall as tyrannosaurus rex and is

45 feet long and stands 20 feet tall while tyrannosaurus rex is 43 feet long

and stands 20 feet tall.

carcharodontosaurus was slightly smaller than giganotosaurus and spinosaurus

Yes, i believe they do, but to make sure go to..... www.ask.com

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Yes T.rex blood has been found in a bone that had to be reluctently broken to bring back from the badlands

Well, they died out 65.5 million years ago (give or take a few million years). There was no recorded human history, so there wasn't anyone to record a "year". I guess you could call the year 65,000,000 BC.

100

Plesiosaurs and icthyosaurs were two unrelated groups of marine reptiles that lived during the Mesozoic. Plesiosaurs had long necks and short tails, or short necks and long tails, and they propelled themselves using their flippers. Icthyosaurs were reptiles that looked much like fish, with a long narrow snout, and a vertical tail fin. Both plesiosaurs and icthyosaurs ate marine animals.

no, they are considered to be an actual type of reptile.

No dinosaurs shared the body plan of alligators. However, Spinosaurus and its relatives that ate fish had heads which looked similar in many ways to the heads of crocodilians.

The dinosaurs, most likely, had dark meat in the muscles they used during long strenuous activities that required stamina and white meat in muscles that they used in short quick bursts; like sprints.

If we look at modern day dinosaurs, we can get a glimpse of what their ancestors may have been like. Birds are considered to be cousins of dinosaurs, if not actually still in the same family. If we take chickens as an example; we all know that they have both white and dark meat. The white meat is made of fast twitch muscles that are great for sprints or very short fast flights. Chickens use these in their breast muscles so they can quickly evade a predator, like a fox, or an ancient fox-like dinosaur, by flying up into a nearby tree. Dark meat in their thighs and legs is made of slow twitch muscles. These are good for long steady walking all day long. Most likely different dinosaurs had different combinations of fast & slow muscles, dark & white meat, depending on how they got their food and stayed away from danger. An interesting fact: we humans have both kinds, a mixture of dark and white meat, in all our skeletal muscles. My educated guess would be dark meat. Think wild turkey.

Yes. Deinonychus was a real dinosaurs closely related to velociraptor.

Stegosaurus was nine metres long, and its brain was about the size of a walnut. This makes it the dinosaur with the smallest brain for its body size. Stegosaurus is dummest.

mamenchasaurus

In the Late Cretaceous (65 million years ago).

mesozoic

a dinosaur footprint is a trace fossil

dinosaurs roamed the earth about 65 million years ago.

Dinosaurs didn't "eat" rocks. However, a few plant eating dinosaurs may have swallowed them to help break down food in their stomach (similar to certain modern birds). These stones, called gastroliths, are very hard to identify, and thus it is unclear which dinosaurs actually used them. However, some possibilities include long necked herbivores (called sauropods), such as Apatosaurus and Diplodocus. Psittacosaurus, a small herbivore related to Protoceratops, was found with dozens of gastroliths in its stomach.

No. Dinosaurs went extinct, approximately, 65 million years ago. Homo sapiens (us) emerged roughly 220,000 years ago. So, there is a huge gap in between the end of the Cretaceous Period (when Dinosaurs disappeared) and the emergence of our species. It isn't even close, really.

However, while most theories concerning Dinosaurs disappearing from the Earth tend to favor some type of mass extinction (I believe the asteroid theory remains the most popular), there is evidence that at least some dinosaurs evolved into modern day birds. To what extent and how many species may have evolved into birds is certainly debated, but there is certainly credible research backing this theory. The point being that, insofar as at least some dinosaurs may be directly related to modern birds, one could look at humans as coexisting with 'dinosaurs' in this regard. I realize that this last bit is not what you meant by coexisting with dinosaurs, I just thought I would throw that out there.

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.

the name of the continent that existed 225 million years ago was pangaea

The oldest fossil of someone belonging to the human genus is that of Homo habilis, which dates to 2.5 million years ago. The oldest fossils of the modern human species date from about 130,000 years ago.

No, it would have been impossible for humans to arise without the death of the dinosaurs. Actually, dinosaurs dominated the Earth for about 150 million years, which forced the mammals of the time to remain small and insignificant because dinosaurs occupied almost every ecological niche. Only when the dinosaurs became extinct, were mammals given more room to grow and diversify, allowing humans to eventually arise.