Genuine Trilobite Fossil (Ptychopariida) on Matrix (421.7 grams) okenite Dimensions: 2 x 2 x

Dimensions: 2 x 2 x 3 Inches

lustrous transparent deep golden calcite with small sphalerite crystal at the base of the crystal

as a whole

fully embedded within the matrix

Massive twinned rhombohedral calcite crystals with rich orange to yellow color all throughout

Genuine Trilobite Fossil (Ptychopariida) on Matrix (421.7 grams) okenite Dimensions: 2 x 2 xPtychopariida 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