Age: Early Ordovician, 460 million years ago Locality: Gongwusu Formation, Wuhai, Ordos, Inner Mongolia Condition: Fully three-dimensional preserved trilobite, complete and intact cephalic spine. Jet-black glossy carbonized exoskeleton, clear thoracic segments and delicate rib grooves. Professionally prepared matrix, no restoration, glue or filling. Rare endemic index fossil of North China Platform, excellent for private collection and display.
Age: Early Ordovician, 460 million years ago Locality: Gongwusu Formation, Wuhai, Ordos, Inner Mongolia Condition: Fully three-dimensional preserved trilobite, complete and intact cephalic spine. Jet-black glossy carbonized exoskeleton, clear thoracic segments and delicate rib grooves. Professionally prepared matrix, no restoration, glue or filling. Rare endemic index fossil of North China Platform, excellent for private collection and display.