Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . on (see Barghusen 1973) anda similar scar or depression has been found in all therapsids examined in whichthe temporal region was sufficiently prepared and which showed a degree ofdevelopment of the temporal roof similar to that of Venjukovia. These therapsidsinclude Titanophoneus (see Orlov 1958, fig. 21) and Notosyodon among thedinocephalians and Leontocephalus (see Kemp 1969, fig. 5) among the gor-gonopsids. This evidence clearly suggests that such an arrangement of muscleattachment was present prior to and during the
Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . on (see Barghusen 1973) anda similar scar or depression has been found in all therapsids examined in whichthe temporal region was sufficiently prepared and which showed a degree ofdevelopment of the temporal roof similar to that of Venjukovia. These therapsidsinclude Titanophoneus (see Orlov 1958, fig. 21) and Notosyodon among thedinocephalians and Leontocephalus (see Kemp 1969, fig. 5) among the gor-gonopsids. This evidence clearly suggests that such an arrangement of muscleattachment was present prior to and during the evolution of those therapsidsthat did not completely eliminate the temporal roof. It is also expected (Barg-husen 1973) that the dorsal and ventrolateral parts of the posterior wall ofthe temporal fossa, including the squamosal and quadrate, served as an areaof origin of the external adductor muscle in Venjukovia. The squamosal portionof this area of attachment to the posterior wall of the fossa would have served NOTES ON THE ADDUCTOR JAW MUSCULATURE OF VENJVKOVIA 255. MAME
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Keywords: ., bookauthorsouthafr, bookcentury1800, bookdecade1890, bookyear1898
