Petrified wood with boring holes- "Teredo wood"

Petrified wood with boring holes- “Teredo wood” Volga RIver, Village of Gorodishche, Ulyanovsk, Russia. Cretaceous period 110 mya. 15.25″x 9.25″ … A fantastic rip cut slab of “Teredo” bored wood with Pyrite filling all the...