Hausmannia Odontochile is a genus of trilobites in the order Phacopida, family Dalmanitidae.

Odontochile is genus of trilobites with a large (about 15 centimetres or 5.9 inches long), moderately vaulted exoskeleton with an inverted egg-shaped outline (about 1.6× longer than wide).

The frontal margin of the cephalon is semicircular to parabolic, and lacks an anterior extension.

13–14 deep and wide pleural furrows have flat or only slightly concave bottoms.

The pleural furrows stay clear of the margin by a distance comparable to that of length (measured along the midline) of an axial ring.

[2] Reussiana is much like Odontochile, but has a much flatter exoskeleton, 17-21 pygidial axial rings, 15-18 pleural furrows and lacks a medial terminal spine.

In Zlichovaspis (Devonodontochile) the anterior median processus is tongue-shaped, the terminal spine is even longer and slimmer, and uniquely, all elevated parts are perforated by large pores.