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Massive Extinctions in Biota at the End of Mesozoic Time

M. N Bramlette
Science
New Series, Vol. 148, No. 3678 (Jun. 25, 1965), pp. 1696-1699
Stable URL: http://www.jstor.org/stable/1716700
Page Count: 4
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Massive Extinctions in Biota at the End of Mesozoic Time
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