The dorsal plates are distinctively flat and unflexed, and have a faint sub-parallel to radial ornamentation.

The genus lacked spines or keels on these plates, features seen in many other aetosaurs.

C. kahleorum, the type species, was named by Heckert and Lucas in 1999; it is known from the Colorado City Formation of the Dockum Group.

C. chathamensis, a second species named by Heckert et al. in 2017, is from the Pekin Formation of the Newark Supergroup.

C. chathamensis differs from C. kahleorum by wider osteoderms on the back and the underside of the neck, as well as the relative lengths of the processes of the surangular.