| The anterior border and preocular areas extend laterally farther beyond the sides of the glabella, and are clearly visible in the palpebral view. |
| The reduced occipital muscle scars are placed on a much lower level than both the glabella and the occipital ring. |
| The only diagnostic characters the type species has are the straight anterior border with a central raised area and a tapered glabella. |
| Steeply inclined palpebral lobe is located opposite anterior half of glabella. |
| Convex, anteriorly truncate glabella tapers forward and is outlined by broad, shallow axial and preglabellar furrows. |
| Antennae were apparently braced to the dorsal exoskeleton near the anterior lateral corners of the glabella. |
