. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 4. Eodicynodon oosthuizeni. ROZ 9. Stereophotograph of skull and lower jaw in ventral view, with partial left forelimb. Note deep notch in palatal rim anterior to left maxillary tusk. Scale in cm. Dominating the ventral view of the skull is a prominent ventrally directed pterygoid flange or process making up the ventrolateral border of the choanal space. The posterior corner of the process is also the most ventral part of the pterygoid and compares in position with the lateral pterygoid process
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 4. Eodicynodon oosthuizeni. ROZ 9. Stereophotograph of skull and lower jaw in ventral view, with partial left forelimb. Note deep notch in palatal rim anterior to left maxillary tusk. Scale in cm. Dominating the ventral view of the skull is a prominent ventrally directed pterygoid flange or process making up the ventrolateral border of the choanal space. The posterior corner of the process is also the most ventral part of the pterygoid and compares in position with the lateral pterygoid process of non-dicynodont therapsids. Behind the interpterygoidal vacuity the pterygoids unite and together with the basisphenoid form a prominent ventral crest in the midline. Behind the contact with the basisphenoid each pterygoid extends posterolateral^ as a quadrate ramus to terminate in a recess in the medial surface of the quadrate. The epipterygoids are represented only by their footplates, but there are indications that these bones carried anterior and posterior cartilaginous exten- sions during life. Thus the dorsal surface of each pterygoid carried a groove leading forward from the front of the footplate of the epipterygoid up to the pterygoid-ectopterygoid suture, and it is likely that this served to house an anterior cartilaginous extension arising from the sharply truncated anterior. 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
