«The first evidence of plants on land comes from spore tetrads attributed to land plants from the Mid-Ordovician early Llanvirn, ~470 million years ago).» (wikipedia)
182cm - Retired since 2003 - Teaching mathematics in university before - My home is at N 46 deg 30' 25.70" / E 0 deg 24' 09.15" --- you can find some of my productions at http://lddd.blogspot.com/
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