Boyer diss 2009 1046..

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

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Figure 2.24. 142

Figure 2.24. MNHN CR 965 Plesiadapis tricuspidens: A, left lateral view of orbitotemporal region (ventral up). B, inset of sphenorbital fissure and alisphenoid/orbitosphenoid suture. B’, enlargement of inset B. C, inset of suboptic foramen. C’, enlargement of inset C. D, inset of sphenoid/palatine and palatine/frontal sutures. D’, enlargement of inset D. E, ventral view of right sphenoidal region. F, right ventrolateral view, orbitotemporal region. G, inset of sphenoid/palatine suture. G’, enlargement of inset G. Sutures shown as white dashed lines. Anterior to right in all parts. Dorsal down in A-D.’ Dorsal up in G and F. Numbers and abbreviations: 96 – palatine/frontal suture in postpalatine canal, 97 – frontal/orbitosphenoid suture just anterior to optic foramen, 98 – orbitosphenoid/palatine contact running anteroposteriorly, 99 – palatine/alisphenoid suture, 100 – dorsal margin of orbitosphenoid, 101 – alisphenoid/orbitosphenoid suture, 102 – “dished” surface on alisphenoid for broken out orbitosphenoid, 104 – sphenorbital fissure, 105 – optic foramen, 106 – various foramina representing blood sinus drainage, 107 – suboptic foramen. As – alisphenoid; Bas – basisphenoid; Fr – frontal; Os – orbitosphenoid; Pal – palatine; vc – vidian canal. 143

Figure 2.24. MNHN CR 965 Plesiadapis tricuspidens: A, left lateral view of<br />

orbitotemporal region (ventral up). B, inset of sphenorbital fissure and<br />

alisphenoid/orbitosphenoid suture. B’, enlargement of inset B. C, inset of suboptic<br />

foramen. C’, enlargement of inset C. D, inset of sphenoid/palatine and palatine/frontal<br />

sutures. D’, enlargement of inset D. E, ventral view of right sphenoidal region. F, right<br />

ventrolateral view, orbitotemporal region. G, inset of sphenoid/palatine suture. G’,<br />

enlargement of inset G. Sutures shown as white dashed lines. Anterior to right in all<br />

parts. Dorsal down in A-D.’ Dorsal up in G and F. Numbers and abbreviations: 96 –<br />

palatine/frontal suture in postpalatine canal, 97 – frontal/orbitosphenoid suture just<br />

anterior to optic foramen, 98 – orbitosphenoid/palatine contact running anteroposteriorly,<br />

99 – palatine/alisphenoid suture, 100 – dorsal margin of orbitosphenoid, 101 –<br />

alisphenoid/orbitosphenoid suture, 102 – “dished” surface on alisphenoid for broken out<br />

orbitosphenoid, 104 – sphenorbital fissure, 105 – optic foramen, 106 – various foramina<br />

representing blood sinus drainage, 107 – suboptic foramen. As – alisphenoid; Bas –<br />

basisphenoid; Fr – frontal; Os – orbitosphenoid; Pal – palatine; vc – vidian canal.<br />

143

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