Figure 8 in Phylogenetic implications of the morphology of the braincase of caecilian amphibians (Gymnophiona)

Figure 8. The morphology of the braincase (sphenethmoid and os basale), as revealed through microcomputed tomography, of Crotaphatrema lamottei (UMMZ 174496). A, the braincase in lateral view; B, dorsal view; and C, ventral view (arrowhead indicates location of the constriction of floor of the os basale, if present). D, the sphenethmoid in anterior view; and E, posterior view. F, the os basale in anterior view; and G, posterior view (asterisk indicates the location of the incision of the margin of the otic capsule by the fenestra vestibuli). H, the right medial surface of the os basale revealing the foramina of the antotic wall and of the medial wall of the otic capsule. Scale bars = 1 cm. See Figure 2 for abbreviations.