[2] Corcorania has a semioval head shield with rounded posterolateral corners and a somewhat truncated appearance from lateral view.

Three slightly curved anterior spines extend from the margin of this shield, with the more lateral two being longest.

The posterior ventral part of the shield has strong projections, likely for anchoring soft tissue.

A spine protruding from beneath the right side of the first trunk segment is the only evidence of appendages, however several disassociated ones are known.

[2] Corcorania honours the Corcoran family, who helped the discoverer with finding the fossils.