Figure 6. Monodelphis brevicaudata CM 52729, skull in occipital view excluding mandibles. Abbreviations: astp, alisphenoid tympanic process; ctpp, caudal tympanic process of the petrosal; ec, ectotympanic; eo, exoccipital; fm, foramen magnum; ham, pterygoid hamulus; jf, jugular foramen; M⁴, upper fourth molar; m, malleus; oc, occipital condyle; pcp, paracondylar process of the exoccipital; pe, petrosal; pgp, postglenoid process; pptf, foramen in the postpalatine torus; ptn, posttemporal foramen; rtpp, rostral tympanic process of the petrosal; so, supraoccipital; sq, squamosal.

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