Dinosaurs

They were dominant during the mesozoic era, which was made up of the Triassic, Jurassic, and Cretaceous periods.

not all dinosaurs fight but there is true some dinosaur did fight such as Triceratops they would fight each other with the horns on there head and charge into each other but some dinosaurs hunt instead of fight such as the mighty T-rex that could bite you open in seconds

No one really knows what color the dinosaurs' skin really was, as few tissue samples have been found. But nevertheless, all dinosaurs, including any purple ones, are sadly all extinct.

The two orders of the Superorder Dinosauria are Saurischia and Ornithischia, meaning the lizard-like pelvic girdle and the bird-like pelvic girdle. The classification is a little strange in that the birds are almost certainly descended from the Saurischia.

No, but sharks were there at the time of dinosaurs but at the end of the Mesozoic Era.

Eras:

Cenozoic Era ( Present-day)

Mesozoic Era (dinosaur time)

Paleozoic Era (blast of organisms (more complex))

Precambrian Era (4.6 billion years ago, simple organisms form)

Dinosaurs evolved into modern birds and some of them are extremely intelligent. The enormous sauropod dinosaurs lasted on the planet for 100 million years, despite their tiny brains. We've had 'intelligence' for just a few million years, so it's too early to say whether it is a better strategy.

lysttrosaurus was a medium sized reptile with two short tusks, it is in a class called the dyconadonts which became extinct at the end of the triassic period, and may be an adept swimmer. it is a herbivore, and it's fossils are found even in remote places like antartica.

If humans have lived in the prehistoric times carnivorous dinosaurs would eat humans it does not matter if they are bigger or smaller thsn the human and sooner or later humans wouldhave gotten extinct.

No. Dinosaurs never swam and never flew. Some would enter shallow water to catch prey and possibly bathe, but were not adapted for life in the water.

Don't get confused with animals like Plesiosaurs or Mosasuars, both of which are reptiles NOT dinosaurs. These reptiles did live at the same time as dinosaurs (throughout the Cretaceous).

Remember: All dinosaurs were reptiles, but not all reptiles were dinosaurs. There were marine reptiles and flying reptiles that lived at the same time as dinosaurs.

----------------------------------------------------------------------That's not exactly right. If the questioner means were there any aquatic dinosaurs, then the answer is correct. However, he's asking if any dinosaurs swam, I think some of the hadrosaurs did - maybe to the extent that modern muskrats do. There's pretty good fossil evidence that indicates some of these animals (Trachodon for e.g.) had webbed feet, which would suggest they weren't afraid to get their feet wet. As noted above, the only truly aquatic reptiles that lived during the age of dinosaurs were plesiosaurs, ichthyosaurs, and mosasaurs. The mosasaurs were just huge Varanid lizards, as the above answer notes. I'm not sure how the plesiosaurs or ichthyosaurs are currently classified, but they're definitely not dinosaurs.

Depending on the species, dinosaurs were around anytime between about 230 million years go to about 65 million years ago. However, if birds are included as dinosaurs, as they are by most paleontologists, then dinosaurs are still around to this day.

A young earth Creationist would say that dinosaurs were created on Day 6 of God's creation. Man was created on Day 6 as

Brontosaurus is an invalid name for Apatosaurus excelsus. Apatosaurus excelsus fossils date to between 154 and 151 million years ago. That means they probably died out about 151 million years ago.

There were far too many types of animals to list them all, but here are a few:

In the Air:

Insects

Pterosaurs

The first birds (some of which had teeth)

On Land:

Dinosaurs

Small mammals (multi-tuberculates, placentals, marsupials, and monotremes)

Lizards

Amphibians (frogs, salamanders, and the last temnospondyls [huge, toothed amphibians])

Insects

In the Ocean:

Fish

Coral

Sharks

Plesiosaurs (marine reptiles, some of which had long necks)

Icthyosaurs (marine reptiles that looked like fish)

Mosasaurs (huge marine lizards)

These are just the main categories of animals that lived during the Mesozoic. For individual types, you might want to research each individually. Hope this helps! :)

Many dinosaurs at least ate some insects. These include Compsagnathus, Segisaurus, and Alvarezsaurus (which was like a dinosaur version of an anteater), just to name a few. Basically, any very small carnivorous dinosaur ate at least some insects.

Tyrannosaurus was the 3rd biggest predator on land after Spinosaurus 1st and Giganotosaurus 2nd. I had teeth up to 1 foot long but usually it has teeth around 15 to 20cm and had a bite force of 3 to 10 tonnes 10 tons. It had a brain about half the size of ours which was a very smart hunter but not as clever as the raptors.It usually grows to 12 to 14m but it may have grown to 16m possibly 18m. 40 feet - 12m 14m - 46 feet 16m - 52 feet 18m - 60 feet.

apparently nOt enOuqh seeinq hOw they are nOt arOund an ymOre! haha :) None,,, they are dead?

probably mammoths and saber-tooth tigers but they were around in the ice-age

The dinosaur looked like a brachiosaurus with fins and flippers. i dont know the name sorry. No dinos actually lived in water some nested near water like spinosaurus. but water dwelling lizards werent dinos they were a different specie altogether. the name your looking for is plesiosaurus most likely that is what most people believed the loch ness monster to be : )

It is one of the many theories. But we don't know for sure what killed them.

A tectonic disaster caused by massive collisions of the Earth's plates would have cause incredibly huge earthquakes, canyons and enormous volcanoes. Earth's plates were still developing during the periods of dinosaurs, so this theory is possible.

The earthquakes and collapsing lands would have caused dinosaurs to fall to their deaths. Those that survived would have been consumed by lava which erupted all over the planet as a result of the Earth's surface splitting open or forming volcanoes.

The sulphuric gasses released from the magma would be poisonous enough to gas the entire planet, choking living creatures and plants. The ash clouds would have also blocked out sunlight.

This is another theory that explains how so many marine dinosaurs survived to evolve into modern creatures, since the water protected them from the lava and gave them something to breathe other than the atmosphere. Masses of exposed magma would also cause torrential rain, as the steam evaporated in the atmosphere. Over time the rain would have cooled the surface of the Earth, creating new landforms and sealing the exposed cracks in the surface.

See related question below.

Over 500 genera, and over 1,000 species of dinosaur have been discovered (excluding birds, which are considered to be dinosaurs by many scientists). It is believed that this is only a fraction of the species of dinosaur that actually did exist, however, and that many species either left no fossils or their fossils have not yet been found.

No. The "Age of the Dinosaurs" lasted for about 150 million years. In that long period of time, many different types of dinosaurs arose, flourished, and then went extinct. When a group of dinosaurs went extinct they would just be replaced with another group.

No. The earth has three different motions around the sun. It spins like a top. That is called precession of the poles. Sometimes the North Pole is closer to the sun in winter. Sometimes it is closer to the sun in summer. Its Orbit changes from round to oblong and back to round. And it has a third motion. When all three motions reach a certain point, the world receives less sunlight and the northern hemisphere receives less sunlight in winter. It gets so cold that winter snow does not melt. The next ice age caused by motions of the earth around the sun is scheduled for 200,000 a.d.

The evolution of a large powerful neck, jaws, and hind legs was determined to be a favorable adaptation. Smaller, yet powerful, forearms were part of that adaptation. When attacking another animal, T-Rex pivoted at the hip, like a lever at it's fulcrum. The massive and heavy head was counter-balanced below the hips by the legs and tail. Because the head and jaw muscles were so large, there was selective pressure to reduce the size of the arms in order to minimize the animal's weight above the hip.

There is quite a bit of debate about this in the science community. The estimates on T. rex's top sped has been put at a low of about 17 mph to a high of 25 mph.

Before the time of the Dinosaurs there was the Permian which included the first instance of reptilian diversification.And before that was the Carboniferous which was the Age of amphibians. And before that it was the Devonian and Silurian which was the age of fish. And before that it was the Ordovician and was the Age of Invertebrate. Before that was the Cambrian which was when Multi-cellular organism started to evolve. And lastly the Pr-Cambrian was where Single organism start to flourish, and lastly again before even that was when the Earth was created.