Fantastic, high grade species example of this spiny Ordovician trilobite. Fantastic well detailed examples. Comes with a display stand and a species/locality label. Found:- Ktaoua Formation, Lower Ordovician, Mount Boutshafrin, Nr. Alnifi, Atlas Mountains, Morocco, North Western Africa. Age:- 470 Million Years Old. Size of trilobite = 17.8 cm (7 inches) long. Overall = 20.3 cm (8 inches) wide by 27.8 cm (11 inches) high.