Dinosaurs

Usually a fossil needs to be at least 10,000 years old. However, there is more than just age to a fossil.

Fossils are often made of sediment and rock that has taken the shape of the object. Therefore, it is just just old, it is also mineralized.

• The Paleozoic, Mesozoic, and Cenozoic eras comprise the most recent 10% of Earth's geologic history.
• The Paleozoic era is marked by seven distinct periods. These consisted of dramatic climate changes, multiple life explosions, shifting continents, and new mountain ranges.
• A mass extinction at the end of the Paleozoic era left only 5% of the species on Earth, which made way for the age of the dinosaurs (and lasted 150 million years).
• The Mesozoic era had a warm, stable climate, leading to the development of rain forests and good conditions for dinosaurs.
• The supercontinent Pangaea broke apart during the Mesozoic era. Over millions of years, continents assumed their present-day positions.
• The first mammals appeared during the Mesozoic era.
• Scientists think the extinction of the dinosaurs was most likely caused by several large events such as volcanism and impact from a comet or asteroid

The modern era that began approximately 65 million years ago with the mass extinction of the dinosaurs is called the Cenozoic era. It is also known as the Age of Mammals, as mammals began to dominate the Earth during this time.

The short answer is, BLUE WHALE is the HEAVIEST animal to ever live. AMPHICOELIAS fragillimus (sauropod dinosaur) was the LONGEST animal to ever live. SAUROPOSEIDON proteles (sauropod dinosaur) was the TALLEST animal to ever live.

The term "large" could be defined in terms of weight, length, or even height. In addition, when you use the phrase "to ever live on Earth", I think you have to consider at least the low-end estimates provided by paleontologists and researchers who analyzed fossilized remains.

The heaviest blue whale recorded weighed roughly 195 tons. The longest blue whale recorded was 110 feet, but this whale was not weighed. It is likely it weighed close to 200 tons or slightly more. Bruhathkayosaurus matleyi, a prehistoric sauropod (titanosaur), was estimated to be the heaviest dinosaur ever to live, weighing 139-175 tons (scaled back from a previous estimate of 175-220 tons that was declared inaccurate by the original researcher). The blue whale still outweighs it, therefore making the BLUE WHALE is the HEAVIEST animal to have ever lived, which should not be surprising given that it lives in the ocean. There is always the possibility that prehistoric whales or land-dwellers weighed more, but no evidence of that has yet been found.

Amphicoelias fragillimus was also a sauropod dinosaur, a fossil of which was studied in the 1870s. The fossil has since gone missing (not sure what that means). However, studies were done before it was lost, and field notes suggest the animal could grow to between 130-200 feet in length. Even this low-end estimate is longer than that of the longest blue whale we have ever recorded. Therefore, in my view it is safe to assume that AMPHICOELIAS fragillimus was indeed the LONGEST known animal to have ever lived (130-200 ft). If other, longer whales or dinosaurs existed, no evidence of them has been found.

Sauroposeidon proteles, another sauropod dinosaur, stood at an amazing 56 feet (6 stories) with its neck extended, making it the tallest known animal to ever walk the earth. By comparison, the Brachiosaurus stood 30 feet high and the tallest modern giraffe stood 20 feet high. Therefore, SAUROPOSEIDON proteles was the TALLEST known animal to have ever lived. If anything taller existed, we do not know about it.

Again, you can't expect these estimates to be 100% accurate when you are talking about animals that lived hundreds of millions of year ago. Yet these studies involved scaling the bones of better-known species in the sauropod family, assuming their relative proportions were similar. The low-end estimates are probably correct, and at least have not been seriously called into question.

History is usually considered to be restricted to the period of time where mankind was able to write down and record events. History is the study of these records.

If one hoes back to a time where no records are available (because they have been lost or before writing was invented, then one relies on other (superposition and radio isotope) dating and the discipline is called "Archeology.

As one goes back further before the first people made objects that can be found one enters the field of "Geology" which studies the evolution of life and the formation of the planet Earth.

Going back still further, before Earth formed, the discipline is called "Cosmology".

The fossil that was found in Bavaria, Germany, is the Archaeopteryx.

Paleontologists typically use tools such as brushes, chisels, picks, and shovels to carefully excavate dinosaur bones from the ground. They also use techniques like sieving and meticulous manual labor to uncover and retrieve the fossils without causing damage.

about 80 miles per hour check at: http://www.enchantedlearning.com/dinotalk/dinoscienceforum/old/Sept01.shtml search utahraptor and it should be the third or fourth question down.

As Apatosaurus had spatulate (chisel-like) teeth suited to a herbivorous diet), it was considered to be a herbivore.[

You can track your progress in the course by setting specific goals, regularly revisiting your goals and overall learning objectives, keeping track of completed tasks and assignments, seeking feedback from instructors or peers, and reflecting on your learning journey. Utilizing tools such as progress trackers, calendars, or journals can also help monitor and evaluate your progress effectively.

The element that has been linked to the extinction of the dinosaurs is iridium. High levels of iridium have been found in sediment layers around the world from the time of the dinosaur extinction, suggesting that it may have come from an asteroid impact.

The largest, well known dinosaur is Argentinosaurus, which hails from Argentina. A poorly preserved femur from a dinosaur called Amphicoelias was discovered about a hundred years ago, which has since been lost to science. From descriptions of it, the bone could have come from an even larger dinosaur. Amphicoelias comes from North America.

Toothed birds lived in the Mesozoic Era during the Cretaceous Period, specifically in the Late Cretaceous. They were among some of the earliest birds that evolved before losing their teeth as part of their adaptation for flight.

Well, I am an idiot, but here is what I think. There was no 65 million years ago. The earth is only about 6,000 years old. Anymore questions email me at connorpkirkpatrick@gmail.com I have only one source to back up my claim, and my source answers all questions with the same answer without even regarding the questions.

Disregard the previous statement while realizing that the author accepts a claim by a man who derived the age of the Earth by adding up the ages of the people mentioned by the Bible. This is both unscientific and just plain wrong. If we know that books are missing from the Bible, which is a man made work in the first place, then we can't possible assume that everyone that existed is listed in Genesis.

To answer your question, an exact answer can not be known, but scientists deduce that anything over 40 pounds could not have survived the event(s) that destroyed the dinosaurs. They estimate 75% of life was destroyed (17% of all families, 50% of all genera.

WE MUST ACCEPT THAT GOD IS NOT REAL. GOD AND THE BIBLE ARE RELICS FROM A TIME WHEN MANKIND HAD ALMOST NO UNDERSTANDING OF SCIENCE. RELIGION IS AN ATTEMPT TO ANSWER QUESTIONS THAT ARE DIFFICULT TO ANSWER. Religion has hurt mankind beyond anything else. Especially Christianity, the religion that the bloodiest and most ruthless people ever have espoused. History has repeated itself and will continue to do so unless we cast aside the chains of religion. Stop the blind faith. Stop believing because you were born into something. IT DIDN'T HAPPEN PEOPLE, MOVE ON.

The oldest known fossils are from Greenland and date back to 3850 million years ago.

They are of stromatolites which are clumps of a fungus like form that dominated the early shallow seas

no proof of what happened, but if it was a meteor, parts could have hit off onto the moon.

Certainly fossilized parts of dinosaurs had been found for centuries but people didn't know exactly what they were. They were mistaken for all sorts of animals.

I think it was Othniel Charles Marsh in the mid-to-late 19th century who first systematically collected dinosaur fossils and assembled them so that it became clear what they were and how they were related.

Birds evolved from dinosaurs that lost their teeth as they adapted to a herbivorous or omnivorous diet. Over time, their beaks became specialized for feeding on seeds, fruits, and insects, eliminating the need for teeth. This evolutionary change allowed birds to become more efficient and successful in their ecological niche.

The dinosaur Allosaurus was named by paleontologist Othniel Charles Marsh in 1877. The name "Allosaurus" means "different lizard" in Greek, referring to its unique characteristics compared to other dinosaurs known at the time.

Ok this is the same person how wrote the question. The reason i want to know this is because my dad found a rock that looks like an egg, but we thought it might be a geode. So, my dad decided to crack it open to see. Instead we found layers of rocks and then we thought it was an egg

A Thesauris is the deadliest dinosour that lives in the water, it is as strong as a tyrantosauris Rex,it has the shapest theeth of all the dinosours and it is the second bigest meat eating Dinosour Also it is the only dinopsour that is an Anphibian

Some dinosaurs, like theropods, had a hip structure that was more bird-like than mammal-like, with a pubis bone that pointed backwards like in birds. This adaptation allowed for more efficient bipedal movement and likely contributed to their agility and speed.

The Oldest known dinosaurs fossils are prosauropods found in Madagascar. They date to about 230 Million Years Ago in the Late Triassic Period. It was from the same family of dinosaurs that became Apatasaurus and Diplodocus.

Previous to this the oldest dinosaur was a Eoraptor found in Argentina. This dates back to about 228 Million Years.