Pliosauroidea Humerus bone cross section replaced by Pyrite- Close up
Volga RIver, Village of Gorodishche, Ulyanovsk, Russia.
Close up cross section of Pliosauroidea bone showing detailed internal structure of bone still preserved in pure pyrite.
Pliosauroidea Humerus bone cross section replaced by Pyrite- Close up
Volga RIver, Village of Gorodishche, Ulyanovsk, Russia.
Close up cross section of Pliosauroidea bone showing detailed internal structure of bone still preserved in pure pyrite.