Boyer diss 2009 1046..

Boyer diss 2009 1046.. Boyer diss 2009 1046..

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Figure 2.26 146

Figure 2.26. Pellouin skull Plesiadapis tricuspidens: A, ventral view. B, inset of palate. B, labeled enlargement of inset B. C, inset of pterygoid process. C’, enlargement of inset C. Note discontinuity between ento- and ectopterygoid processes, likely indicating basisphenoid/alisphenoid suture. D, inset of scaphoid fossa of pterygoid process. D’, enlargement of inset D. E, inset of alisphenoid/squamosal suture. E’, labeled enlargement of inset E. F, inset of posterolateral basicranium. F’, enlargement of inset F. Sutures shown as black dashed lines. Numbers and abbreviations: 110 – palatine/alisphenoid suture, 111 – squamosal/alisphenoid suture, 114 – palatine/maxilla suture on palate, 119 – squamosal/tympanic suture, 120 – tympanic/petrosal suture, 122 – palatal palatine foramina, 125 – foramen in scaphoid fossa. As – alisphenoid; Bas – basisphenoid; Boc – basioccipital; Bul – auditory bulla; Ect – ectotympanic; Fr – frontal; iof – infraorbital foramen; jp – jugualr process of exoccipital; Mx – maxilla; Pal – palatine; pgf – postglenoid foramen; Ptr – petrosal; Sq – squamosal. 147

Figure 2.26. Pellouin skull Plesiadapis tricuspidens: A, ventral view. B, inset of palate.<br />

B, labeled enlargement of inset B. C, inset of pterygoid process. C’, enlargement of inset<br />

C. Note discontinuity between ento- and ectopterygoid processes, likely indicating<br />

basisphenoid/alisphenoid suture. D, inset of scaphoid fossa of pterygoid process. D’,<br />

enlargement of inset D. E, inset of alisphenoid/squamosal suture. E’, labeled enlargement<br />

of inset E. F, inset of posterolateral basicranium. F’, enlargement of inset F. Sutures<br />

shown as black dashed lines. Numbers and abbreviations: 110 – palatine/alisphenoid<br />

suture, 111 – squamosal/alisphenoid suture, 114 – palatine/maxilla suture on palate, 119<br />

– squamosal/tympanic suture, 120 – tympanic/petrosal suture, 122 – palatal palatine<br />

foramina, 125 – foramen in scaphoid fossa. As – alisphenoid; Bas – basisphenoid; Boc –<br />

basioccipital; Bul – auditory bulla; Ect – ectotympanic; Fr – frontal; iof – infraorbital<br />

foramen; jp – jugualr process of exoccipital; Mx – maxilla; Pal – palatine; pgf –<br />

postglenoid foramen; Ptr – petrosal; Sq – squamosal.<br />

147

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