Figure 7 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 7. The posteroventral braincase wall of Myosaurus gracilis (BP/1/2690 and BP/1/2701a): basioccipital (lime green) in (A) posterior, (B) dorsal, (C) ventral and (D) right lateral views; the exoccipital (pink) in (E) anterior, (F) posterior, (G) dorsal and (H) ventromedial views; supraoccipital (dark green) in (I) anterior, (J) posterior, (K) ventral and (L) dorsal views; prootic (blue) in (M) anterior, (N) left lateral, (O) medial, (P) dorsal and (Q) posterior views; (R) the complete braincase of BP/1/2690 in left lateral view; opisthotic (golden) of BP/1/2690 in (S) anterior and (T) posterior views; right opisthotic of BP/1/2701a in (U) posterior view; the braincase of BP/1/2690 in (V) ventral view. ap, alar process of the prootic; ascc, attachment of the anterior semicircular canal; bo, basioccipital; boc, basioccipital condyly; bocc, basioccipital condyle concavities; bod, basioccipital ventral depression; bocdr, basioccipital condyle dorsal ridge; bomr, basioccipital median ridge; bonf, basioccipital nutritive foramina; bosr, basioccipital lateral ridges; bt, basioccipital tubera; CNV, passage of the cranial nerve five (V); eo, exoccipital; eoat, exoccipital anterior tuberosity; eoc, exoccipital condyle; eodc, exoccipital dorsal component; eopsu, exoccipital posterior sulcus; fa, facial foramen; flo, floccular fossa; fm, foramen magnum; fo, fenestra ovalis; gp, gap between the prootic and the clinoid process; hf, hypoglossal foramen; jf, jugular foramen; lscc, attachment of the lateral semicircular area; lvb, opisthotic lateral vertical buttress; ob, opisthotic body; obu, opisthotic bulges; occp, occipital pit; olc, opisthotic lateral crest; omc, opisthotic medial crest; op, opisthotic; opmb, opisthotic posteromedial buttress; osu, opisthotic posterior vertical sulcus; ovmp, opisthotic ventromedial process; pa, pila antotica; pabt, prootic anterior buttress; pbs, parabasisphenoid; ppex, prootic posterior excavation; pr, prootic; prac, pila antotica anterior crests; prmc, prootic medial crest; prpb, prootic posterior bulge; pscc, attachment of the posterior semicircular canal; pt, pterygoid; ptf, posttemporal fenestra; sac, supraoccipital semicircular crests; sap, supraoccipital anteriorly projected crest; slr, supraoccipital lateral recess; smb, supraoccipital subvertical buttress; spi, supraoccipital posterior pit; su, supraoccipital; svd, supraoccipital posterior vertical depressions; ve, vestibular area. The horizontal square pattern in (O) re