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. 2017 Apr 11;5:e3119. doi: 10.7717/peerj.3119

Figure 6. Horizontal virtual sections of the skull of various gorgonopsian basicrania at different ontogenetic stages.

Figure 6

Notice, for example, the wide separation between the basipostsphenoid and the parasphenoid-basipresphenoid complex in GPIT/RE/7124 (A) versus the condition in GPIT/RE/7119 (B). Abbreviations: bocc, basioccipital; bspost, basipostsphenoid; ic, internal carotids; op, opisthotic; ps+bspre, parasphenoid-basipresphenoid; pro, prootic; pt, pterygoid.