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The mass extinction that is believed to have eliminated larger dinosaurs 65 million years ago. Smaller dinosours survived, their descendants are today's reptiles. The mass extinction is believed to have been caused by an asteroid that collided with Earth. For more information, read the Wikipedia article on "Cretaceous-Paleogene extinction event", or search for this term on your favorite search engine.
What else can I help you with?
What is the mass extinction?
the holocene extinction
What is a synonym for mass extinction?
Catastrophic extinction event.
What is the KT boundary asteroid?
It is the asteroid that hit the Earth 65 million years ago and contributed to the extinction of the dinosaurs. It impact crater is located in Chicxulub which is in the Yucatan peninsula, it is buried deep underground. KT refers to the geological transition between the Cretaceous and the Tertiary periods. (Cretaceous in German starts with a K)
What began and ended with mass extinction?
Mesozoic
Element traced to the extinction of the dinosaurs?
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.
What is the effect of mass extinction?
The effect of mass extinction is extinction, death of a mass
When do small mammals appear in fossil records?
During the KT extinction event the majority of life on earth became extinct. Small mammals, however, were able to survive this mass extinction.
Which event is the most likely to cause for the four periods when punctuated equilibrium seems to have occurred?
Extinction events, such as the Permian extinction and the KT extinction event. You have adaptive radiation driving evolutionary change after such events. Google " the rise of the mammals. "
What does episodic mean?
New species that form right after a mass extinction
What evidence of the KT boundary in Colorado has been discovered by researchers?
Researchers have found evidence of the KT boundary in Colorado, including a layer of sediment containing high levels of iridium, shocked quartz, and microtektites. These materials are characteristic of the impact event that caused the mass extinction of the dinosaurs.
What are the extinction of animals in the very distant past?
There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.
What is the mass extinction?
the holocene extinction
How do scientists know that KT extinction took place?
When we see that there are fossils found in a certain geological layer, which are evidence that a certain species existed at that time, and then in the next geological stratum we no longer find those fossils, and there is no evidence that the species which used to exist still exists, we infer that the species became extinct. If a whole lot of species become extinct at approximately the same time, we call that an extinction event, such as the KT extinction.
Can you use mass extinction in a sentence?
The dinosaurs fell victim to a mass extinction.
What is it called when a high percentage of the species on earth dies off at a particular line?
This would be called a mass extinction or mass die off.This would be called a mass extinction.
When was the first mass extinction?
540 million years ago was the first mass extinction
How do you use the word mass extinction in a sentence?
We are still not sure what caused the mass extinction of the dinosaurs, though an asteroid impact seems to be the popular theory.Scientists believe we may be heading towards another mass extinction event.
