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Dinosaurs
Dinosaurs are a prehistoric species that lived on Earth from 230 to 65 million years ago.
3,979 Questions
How many toes did a Oligohippus have?
The Oligohippus was founded about 20 million years ago. It had a total of three toes, but only the center toe was functional.
There are two parts towards this question of no and sort-of.
There are no living Dinosaurs in this period of time, in other words, They Are EXTINCT.
"The extinction of the dinosaurs occurred during then end of the Cretaceous Period, around 65 million years ago, and caused the loss of up to 70 percent of all life on the planet. Although this event was not the only mass extinction in Earth's history or the most severe, dinosaur extinction has spawned a range of theories from the credible to the less than believable.
-AW Drake
The only known close relatives of the Dinosaur species are the Reptile Family (e.g. Snakes, the Komodo Dragon, Lizards).
How many different groups of dinosaurs are there?
It depends on what size "group" one is talking about. There were two big groups, the Ornithischians, whose members had hips like those of modern birds, and the Saurischians, whose hips were more lived those of lizards.
Within these two groups, there were smaller, but still pretty populous, groups of Theropods, Sauromorphopods, Stegosaurs, Ankylosaurs, Ceratopsians, Hadrosaurs, Pachycephosaurs, Dromaeosaurs, Ornithomimi, and probably others that haven't been discovered.
The smaller groups are the Genera, and these are the names you know: Apatosaurus, Tyrannosaurus, Triceratops, etc.
What are the differences between a Brachiosaurus and a Camarasaurus?
1. Brachiosaurus had longer forelimbs than hind legs. Camarasaurus had slightly longer hind limbs than forelimbs.
2. Like most sauropods, Camarasaurus had a horizontal neck. Brachiosaurus, on the other hand, had a verticle neck.
3. Camarasaurus supremus, the largest species of Camarasaurus, was 75 ft long and weighed about 50 tons. The largest Brachiosaurid was Sauroposeidon proteles, and it was 56 ft tall, 112 ft long, and weighed 55-66 tons.
4. Camarasaurus were the most common dinosaurs found in western North America that date to the late Jurassic.
What does a 65.5 million year old impact crater in Mexico provide evidence for?
At the very least, that it was caused by a meteorite falling to Earth. According to calculations, the "rock" had 4.1 to 4.4 kilometers (2.5-2.7 miles) of diameter.
It is also theorized that such impact was the cause of the KT Extinction Event, commonly known as the "dinosaur extinction".
What kind of habitat does the baryonyx live?
Baryonyx lived near large sources of water where it could find lots of fish.
Where did the Tupuxuara live 112 million years ago?
Brazil is the place where the Tupuxuara lived 112 million years ago.
What is the legendary dinosaur that lived underwater and had a snakelike neck called?
You mean Plesiosaurus? Oh, nope, it's not a dinosaur at all, no dinosaurs back then could swim...or fly. "Flying Dinosaurs" are actually a different group of prehistoric reptiles. Same goes for "Swimming Dinosaurs."
There has only been one Saltopus skeleton every found.... and it was only part of a skeleton. it is questionable... believe whatever you think it is.
How many people were on earth 200 years ago?
duno why don' you go back in time and ask all six of the people who lived back then... idiot.
What is the population of meat eaters in the world?
Those that can eat meat: 100%. Those that do: around 80%. Those that would if given the chance: around 10%.
