Pliosauroidea Rib bone cross section replaced by Pyrite

Pliosauroidea Rib bone cross section replaced by Pyrite- Volga RIver, Village of Gorodishche, Ulyanovsk, Russia. 2″ across Pliosauroidea is an extinct clade of marine reptiles. Pliosauroids, also commonly known as pliosaurs, are known from the Jurassic and...

Fossil Mammoth tusk-cross section

  Fossil Mammoth tusk-cross section- Kotzebue, Alaska. 5.5″ across The woolly mammoth (Mammuthus primigenius) was a species of mammoth, the common name for the extinct elephant genus Mammuthus. The woolly mammoth was one of the last in a line of mammoth...

Petrified wood-Hickory

Petrified wood-Hickory- Yakima Firing Range, Yakima Valley, Central Washington. 5.75″ across . Miocene epoch. An old location that has been off limits for decades, specimen collected in the early 1960’s.