Figure 4

Digitally rendered details of the left quadrate-squamosal joint of M. bassanii specimen PIMUZ T 2477 in lateral view (a), posterior view (b), and medial view (c). Note tight fit of the quadrate head and the quadrate articulation facet on the squamosal in A. qj quadratojugal, qu lb quadrate lateral boss, qu mb quadrate medial boss, qu pf quadrate pterygoid flange, qu tf quadrate tympanic flange, sq squamosal.