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

Figure 5.

Figure 5

Skull of thallatosuchians to illustrate the ‘thalattosuchian pattern’ of MC. (A) Overview of the skull of Pelagosaurus typus (NHMUK OR 32599) 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 Pelagosaurus typus (NHMUK OR 32599) in left lateral view. (C) Left lateroposteroventral view of the skull and MC of Pelagosaurus typus (NHMUK OR 32599) to illustrate the possible closure of the occipital portion of the cranioquadrate passage. (D) Detail of the posterior portion of the skull and MC of Suchodus durobrivensis (NHMUK R 2618). The arrow indicates the possible separation of the cranioquadrate passage and EAM. CQP, occipital aperture of cranioquadrate passage;EAM, external auditory meatus; FM, foramen magnum; IC, foramen for the internal carotid artery; MC, meatal chamber; OI, otic incisure; POF; periotic fossa; XII, foramen for cranial nerve XII. Scale bars: 2 cm.