Ordovician Brittle Star (Ophiura) Fossil With Trilobite Parts

This is a 2.4" wide Ophiura brittle star fossils from the Kataoua Formation of Morocco. These Ophiura brittle stars are Ordovician in age, or approximately 450 million years. The dark orange/brown coloration is due to the oxidization of iron pyrite.

There are also parts of at least two types of trilobites associated with it on the matrix. There are a couple tails of a Dalmanitid and parts of a type of Harpid.

Comes with a display stand.