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What are 3 pieces of evidence that supports why dinosaurs became extinct due to a comet?
Wiki User
∙ 10y ago
There is strong evidence that an extraterrestrial object impacted near the Yucatan peninsula. There is also evidence that a boundary layer was formed that is rich in iridium. The most plausible origin of this iridium is an extraterrestrial impact. Below that layer, dinosaur bones are present and above that zone there are none. If I had to bet, I'd bet that the comet killed them by the effects of the impact.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoAlthough it may never be 100% certain, i would say that it was a comet that killed the dinosaurs because of the enormous sized crater that is in the Gulf of Mexico. With today's tech, the evidence taken from the crater was matched to 65,000,000 years ago.
Wiki User
∙ 10y agoDinosaurs were probably wiped out by an asteroid, not a comet. Pieces of evidence include a worldwide layer of iridium at the date of the extinction (iridium on Earth's surface only comes from meteorites, and it would have taken a huge one to leave that much iridium behind), a layer with lots of impact spherules corresponding with the iridium (impact spherules are droplets of liquid rock that were ejected into space by the impact and then fell back to Earth, cooling into tiny grain sized rocks), and the fact that no dinosaur fossils are found after the signs of the asteroid impact. There also appears to be a buried impact crater where the asteroid would have struck in the Yucatan Peninsula.
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What major group flourished only after the dinosaurs became extinct?
the dinosaurs became extinct because the was kill of there family
What era did dinosaurs became extinct?
I think they became extinct at the end of the Mesozoic era
When did the dinosaur's become extinct?
Non avian dinosaurs became extinct 65.5 million years ago, at the end of the Cretaceous. However, birds are considered dinosaurs. Because birds still exist, dinosaurs are not completely extinct.
What are two pieces of evidence used to support the theory that dinosaurs became extinct as a result of volcanic eruption about 65 years ago?
The dinosaurs died by a giant asteroid that hit Mexico.
What are the ratings and certificates for Rex the Runt How Dinosaurs Became Extinct - 1994?
Rex the Runt How Dinosaurs Became Extinct - 1994 is rated/received certificates of: Spain:T
Did primates evolve before dinosaurs became extinct?
no
Were dinosaurs extinct in the 19th century?
Dinosaurs became extinct millions of years ago. Dinosaurs died off long before humans came into existence.
When was dinosaurs in this world?
The last dinosaurs became extinct 65 million years ago.
How did dinosaurs change during the Cretaceous period?
No. If you count birds as dinosaurs, they still exist. If you don't, dinosaurs became extinct at the end of the Cretaceous, not the beginning.
How can you tell that dinosaurs suddenly became extinct?
time machine
How did pteranodon become extinct?
A pteranodon is a pterosaur, or a flying dinosaur. During the fall of the dinosaurs, all dinosaurs became extinct, including the pterosaurs.
Do dinosauirs and dragons exisit?
No! Dinosaurs became extinct a long time ago.
