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You are probably asking about the mass extinction at the Cretaceous-Mesozoic boundary, about 65 million years ago. We know that there was a major meteoric impact in the Yucatan peninsula at that time, which was at least partially involved in the mass extinction; some scientists believe that there were other contributing factors, but it remains a complicated and difficult issue to investigate.
Wiki User
∙ 13y ago
Wiki User
∙ 7y agoIt's hard to assign a belief about the cause of the Mesozoic mass extinction to 'most' scientists. We have evidence for one or more meteoric impacts such as that at Chicxulub, massive volcanic eruptions such as the Deccan Traps in India, and changing climates due to the shifting of tectonic plates. Many scientists favour one reason over another, and others think it may have been a combination of all these factors.
Wiki User
∙ 8y agoa comet impacting the earth
Wiki User
∙ 7y agoChange in the environment.
Anonymous
Dinosaurs got hit by a meteor
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The mass extinction at the end of the Mesozoic Era was caused by .?
a comet impacting the earth
What event marked the end of the Mesozoic Ara and the beginning of the Cenozoic?
An asteroid impact
Is the Cenozoic era before or after dinosaur extinction?
Yes, the Cambrian Period was before the Mesozoic Era
What is the name of the major extinction that preceded the Mesozoic era?
The Permian-Triassic extinction event. Also known as the P-Tr extinction or the Great Dying, where 96% of all life died out.
When was the last mass extinction?
The Cretaceous–Tertiary extinction event 65 million years ago was the last mass-extinction, and many believe that humans are causing a mass-extinction right now.
The mass extinction at the end of the Mesozoic Era was caused by .?
a comet impacting the earth
What event marked the end of the Mesozoic Ara and the beginning of the Cenozoic?
An asteroid impact
What era did organisms suffer largest mass extinction known?
Mesozoic era
What era ended in the largest mass extinction in earth's history?
Mesozoic
What event marked the both the beginning and end of the Mesozoic era?
A mass extinction
What type of reptile did not survive the mass extinction event at the end of the mesozoic era?
Dinosaurs
How might the mass extinction at the end of the mesozoic era relate to the dominance of mammals in the Cenozoic era?
mass extinction: When at least 50 % of the species on Earth go extinct within a relatively short amount of time.
Why did many planets die at the end of the mesozoic?
Scientists believe the Cretaceous-Paleogene extinction event, or the plants dying at the end of the Mesozoic Era, was caused by a massive asteroid/comet impact. The theory suggests that the impact had catastrophic effects on the environment, including an impact winter, which prevented the plants from carrying out photosynthesis.
What event ended the paleozoic and mesozoic era?
Extinction did.
What contributed to the extinction that marks the end of the Mesozoic era?
meteorite collision
Is the Cenozoic era before or after dinosaur extinction?
Yes, the Cambrian Period was before the Mesozoic Era
What are the areas on the geologic time scale?
Paleozoic Era- Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian Mass Extinction (Permian-Tertiary) 248 mya Mesozoic Era- Triassic, Jurassic, Cretaceous Mass Extinction (K-T) 65 mya Cenozoic- Tertiary, Quaternary
