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Study Associates Asteroid Or Comet Impact With Extinctions In Argentina

Date:
December 14, 1998
Source:
Brown University
Summary:
A new study shows that a previously unknown impact from an asteroid or comet coincides with the disappearance of 35 different types of ancient mammals and a flightless bird 3.3 million years ago. The impact may have directly caused the regional extinctions or triggered a climate change that led to the disappearance of the animals in what is now southeastern Argentina.

PROVIDENCE, R.I. -- A new study shows that a previously unknown impact from an asteroid or comet coincides with the disappearance of 35 different types of ancient mammals and a flightless bird 3.3 million years ago. The impact may have directly caused the regional extinctions or triggered a climate change that led to the disappearance of the animals in what is now southeastern Argentina.


Story Source:

The above story is based on materials provided by Brown University. Note: Materials may be edited for content and length.


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Brown University. "Study Associates Asteroid Or Comet Impact With Extinctions In Argentina." ScienceDaily. ScienceDaily, 14 December 1998. <www.sciencedaily.com/releases/1998/12/981214075517.htm>.
Brown University. (1998, December 14). Study Associates Asteroid Or Comet Impact With Extinctions In Argentina. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/1998/12/981214075517.htm
Brown University. "Study Associates Asteroid Or Comet Impact With Extinctions In Argentina." ScienceDaily. www.sciencedaily.com/releases/1998/12/981214075517.htm (accessed April 19, 2014).

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