![](https://www.pdfsearch.io/img/27a537a4c300eb67126a12eabf6883ca.jpg) 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 grAdd to Reading ListSource URL: ucscgeochronology.sites.ucsc.eduDownload Document from Source Website File Size: 2,43 MBShare Document on Facebook
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