COVER A Classopollis meyeriana conifer pollen grain (~30 micrometers across) preserved in lake sediments deposited just after a massive, volcano-induced extinction event ~200 million years ago. This fossilized pollen gr

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Date: 2015-10-14 14:51:08		COVER A Classopollis meyeriana conifer pollen grain (~30 micrometers across) preserved in lake sediments deposited just after a massive, volcano-induced extinction event ~200 million years ago. This fossilized pollen gr Add to Reading List Source URL: ucscgeochronology.sites.ucsc.edu Download Document from Source Website File Size: 2,43 MB Share Document on Facebook