Petrified Pine cone attached to branch - Araucaria mirabilis. 

Cerro Cuadrado Mountain, Patagonia, Argentina.  Jurassic Period- 206 - 144 mya.

Petrified pine cone - Metasequoia

Hell Creek formation, Eastern Montana.  Late Cretaceous Period: 70 - 65 mya.  Measures .85" in diameter.

Petrified Wood - Madagascar.  Jurassic Period: 206 - 144 mya.

Yellowcat Petrified wood

Yellow Cat area, Grand county, Utah.  Jurassic Period: 206 - 144 mya.  Measures 5.5 cm x 3.9 cm wide; 6 cm long.