. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. mptcr MAMIPt(post). MAME att apon Fig. 4. The skull and lower jaw of Titmwphoneus. A. Dorsal view of skull. B. Ventral view of skull. C. Lateral view of skull and lower jaw. The areas of origin of the external adductor and posterior pterygoideus muscles are indicated by parallel lines. (Outlines after Orlov.) as the original site from which the invasion of muscle attachment onto the lateral surface of the postorbital in therapsids, including Venjukovia, took place. The posterodorsal tip of the dentar
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. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. mptcr MAMIPt(post). MAME att apon Fig. 4. The skull and lower jaw of Titmwphoneus. A. Dorsal view of skull. B. Ventral view of skull. C. Lateral view of skull and lower jaw. The areas of origin of the external adductor and posterior pterygoideus muscles are indicated by parallel lines. (Outlines after Orlov.) as the original site from which the invasion of muscle attachment onto the lateral surface of the postorbital in therapsids, including Venjukovia, took place. The posterodorsal tip of the dentary, forming the apex of the coronoid eminence in Venjukovia, marks the probable site of attachment of a bodenapo- neurosis (Fig. ID, att apon) serving for the insertion of much of that part of the external adductor described above. This function for the coronoid eminence is indicated by comparisons with living reptiles (Barghusen 1973) and is con- sistent with direct evidence of tendon attachment in Dimetrodon (Barghusen 1968) and theriodont therapsids. A similar insertion would also have been present in all dinocephahans (Fig. 4C, att apon) and, as Cluver (1975) has. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. South African Museum. Cape Town : The Museum