This is an excellent multiple plate of trilobites. It is a cluster of Onnia superba from the Ordovician of Morocco. This plate has three complete specimens and a partial exposed. The larger two of the three complete ones have both genal spines intact, and all four bugs have the occipital spines preserved. The trilobites are all closely associated, which makes for a very aesthetic specimen. This is a very collectible multiple plate of classic Trinucleid trilobites.