Unfortunately the preservation is not good enough to show the lenses of the eyes. This is one of my two similar Ordovician trilobites in the Acastidae, the other being Sokhretia. The third picture shows the primary difference between the two genera -- Baniaspis has a proportionately longer tail spine that is discrete from the pygidium, Sokhretia has a short spine formed in a continuous curve with the pygidium.
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