Petrified trunks from Madagascar reveal cellular details of the extinct tree fern, Psaronius brasiliensis that lived about 270 million years ago. In life, the Psaronius probably resembled the present-day Cyathea tree ferns of New Zealand. Drop a tea-light into the hole in the center and either sit back and imagine you are in the quiet before the dawn of time or party like its 9 (BC).