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Figure 3: Lateral view of the skull of Hemicircus concretus. E: squamosal region; ET: ectethmoid region; J: jugal arch; NA: nostril; P: parietal region; PjJ: jugal projection; PrMA: mandibular process of the quadrate bone; PrZ: zygomatic process; PrPO: postorbital process; PrSm: suprameatic process; PT: pterygoid bone; Q: quadrate bone; SI: interorbital septum; sno: olfactory ridge; O: occiptal region.