psarolite
Psar"o*lite, n. Etym: [Gr. -lite.] (Paleon.) Defn: A silicified stem of tree fern, found in abundance in the Triassic sandstone.
Psar"o*lite, n. Etym: [Gr. -lite.] (Paleon.) Defn: A silicified stem of tree fern, found in abundance in the Triassic sandstone.