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

Figure 4.

Figure 4

Skull of ‘protosuchians’ to illustrate the MC in basal crocodyliforms. (A) Overview of the skull of Protosuchus haughtoni (BP/1/4770) in left lateral view to illustrate the general morphology of the MC in basal crocodyliforms. (B) Left dorsolateral view of the posterior portion of the skull of Protosuchus haughtoni (BP/1/4770) showing the sulcus on the outer surface of the squamosal and postorbital for the attachment of the upper earlid. (C) Detail of the posterior portion of the skull and MC of Protosuchus haughtoni (BP/1/4770) in left lateral view. (D) Detail of the posterior portion of the skull and MC of Protosuchus haughtoni (BP/1/4770) in left lateral view showing the POF. (E) Detail of the posterior portion of the skull and MC of Hemiprotosuchus leali (PVL 3829) in right lateral view, with selected structures of the MC highlighted. Arrows indicate the extension of the sulcus for the attachment of the upper earlid. EAM, external auditory meatus; MC, meatal chamber; OI, otic incisure; POF; periotic fossa; SF, subtympanic foramina. Scale bars: 2 cm.