Genuine Trilobite Fossil (Ptychopariida) on Matrix (184.4 grams) stilbite This incredible specimen is shaped

This incredible specimen is shaped from a solid piece of petrified wood

This egg-shaped specimen of top-quality petrified wood is beautifully hand-polished and displays remarkable hues of white and black in its patterning

25 Inches

The fossilized shells of Ammonites are typically spiral-shaped

This stone is polished to a mirrored finish which amplifies its beautiful color and fits comfortably in your hand

Genuine Trilobite Fossil (Ptychopariida) on Matrix (184.4 grams) stilbite This incredible specimen is shapedPtychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian period. Trilobites have facial sutures that run along the margin of the glabella and or fixigena to the shoulder point where the cephalon meets the thorax. These sutures outline the cranidium, or the main, central part of the head that does not include the librigena (free