Skip to main content
. 2016 Feb 4;228(5):838–863. doi: 10.1111/joa.12439

Figure 6.

Figure 6

Skull of basal mesoeucrocodylians to illustrate the ‘basal notosuchian/sebecian pattern’ of the MC. (A) Overview of the skull of Hamadasuchus rebouli (ROM 52620) in left lateral view to illustrate the general morphology of the MC in this pattern. (B) Detail of the posterior portion of the skull and MC of Araripesuchus gomesi (AMNH 24450) in left lateral view. (C) Detail of the posterior portion of the skull and MC of Araripesuchus gomesi (AMNH 24450) in left lateral view, with selected structures of the MC highlighted. (D) Detail of the posterior portion of the skull and MC of Hamadasuchus rebouli (ROM 52620) in left lateral view, with selected structures of the MC highlighted. (E) Detail of the posterior portion of the skull and MC of Hamadasuchus rebouli (ROM 54511) in right lateral view, with selected structures of the MC highlighted. (F) Lateral view of the posterior portion of the skull and MC of Sebecus icaeorhinus (AMNH FR 3160), with selected structures of the MC highlighted. (G) Posterolateral view of the posterior portion of the skull and MC of Sebecus icaeorhinus (AMNH FR 3160) after disarticulation of the squamosal, with selected structures of the MC highlighted. Arrows indicate the extension of the sulcus for the attachment of the upper earlid. BOA, bony otic aperture; DOI, dorsal otic incisure; EAM, external auditory meatus; IOC, incisure of the otic aperture of the cranioquadrate passage; MC, meatal chamber; OB, otic buttress; OI, otic incisure; POF; periotic fossa; SF, subtympanic foramen. Scale bars: 2 cm.