Odontochile  Odontochile is a genus of trilobites in the order Phacopida, family Dalmanitidae. These trilobites were fast-moving low-level epifauna and detritivore. They lived in the Devonian period, from 414 to 391 million years ago. Silurian of China; Silurian to Devonian of Australia and the United States; Devonian of Algeria, Canada, the Czech Republic, France, Germany, Kazakhstan, Morocco and Spain. "Odontochile" is genus of trilobites with a large (about long), moderately vaulted exoskeleton with an inverted egg-shaped outline (about 1.6× longer than wide). Its headshield (or cephalon) is semicircular, with long (genal) spines extending from the side of the cephalon back to the tailshield (or pygidium). The frontal margin of the cephalon is semicircular to parabolic, and lacks an anterior extension. The facial suture lies in front of the preglabellar furrow. The frontal lobe of the central raised area of the cephalon (or glabella) is much wider than the other lobes. The frontal lobe is vaulted. The eye is very large, almost touching the lateral and the posterior border furrow. The eye lobe is much higher than the glabella. The "seem" that is visible from the ventral side (or doublure) is wide and flat, and has a deep and wide. The "palate" (or hypostome), also only visible from the ventral side, is elongated subtriangular (about 1½× wider than long) and adorned with three prominent spines at its back rim, and two weaker ones more to the side. To the front the hypostome has robust wings extending sideways. The thorax consists of 11 segments. The tips of the segments are leaf-shaped, pointed and angle back at about 30°. The pygidium is large, subtriangular, and about ⅔-¾× as long as wide. The axis is vaulted and 20-25% of the width of the pygidium and consists of 16-20 rings. 13–14 deep and wide pleural furrows have flat or only slightly concave bottoms. The furrows within each pleural rib (or interpleural furrows) are very narrow.