This is an attractive double specimen of Onnia superba from the Ordovician of Morocco. Both trilobites are complete and well articulated. The trilobite on the left has the pygidium present but is not seen in the picture. The bugs are very 3-dimensional and exhibit excellent detail. The pitted cephalic borders are totally intact and beautifully displayed. The bulbous glabellas are easily seen, and the long genal spines are quite evident. The dark brown trilobites contrast wonderfully with the light-colored matrix. They are nicely centered on the rounded plate of limestone. This is a great double specimen of this Trinucleid trilobite from Morocco.