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Boyer diss 2009 1046..

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Figure 2.23. MNHN CR 965 Plesiadapis tricuspidens: A, right lateral view of<br />

orbitotemporal region. B, inset of right postpalatine foramen. B’, enlargement of inset B.<br />

C, right dorsolateral view of orbitotemporal region. D, inset of frontal and orbitosphenoid<br />

fragment. D’, enlargement of inset D. Sutures shown as white dashed lines. Anterior to<br />

left, dorsal down in all parts. Numbers and abbreviations: 96 – palatine/frontal suture in<br />

postpalatine canal, 97 – frontal/orbitosphenoid suture just anterior to optic foramen, 100 –<br />

dorsal margin of orbitosphenoid, 104 – sphenorbital fissure, 105 – optic foramen, 106 –<br />

various foramina representing blood sinus drainage, 108 – remnants of optic canals on<br />

broken orbitosphenoid (encompassed by black, dashed line and shaded lightly), 109 –<br />

basisphenoid sinus space. As – alisphenoid; Bas – basisphenoid; Fr – frontal; Mx –<br />

maxilla; Os – orbitosphenoid; Pal – palatine; ppc – postpalatine canal.<br />

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