. Bulletin. Natural history; Natuurlijke historie. 116 PEABODY MUSEUM BULLETIN 42. Fig. 41. The right fibula of cf. Stylinodon mirus, USNM 18425. a) Lateral view, b) Medial view. Abbreviations: as = astragalar facet; dt = distal tibial facet; em = external malleolus; h = head; pt = proximal tibial facet. Scale is 4 cm long. Entocuneiform The entocuneiform is only partially preserved in USNM 18425 and was further reconstructed by Gazin (1952). It is more than twice the size of either of the other two cuneiforms. The proximal surface is broad and deeply concave for articulation with the first me
. Bulletin. Natural history; Natuurlijke historie. 116 PEABODY MUSEUM BULLETIN 42. Fig. 41. The right fibula of cf. Stylinodon mirus, USNM 18425. a) Lateral view, b) Medial view. Abbreviations: as = astragalar facet; dt = distal tibial facet; em = external malleolus; h = head; pt = proximal tibial facet. Scale is 4 cm long. Entocuneiform The entocuneiform is only partially preserved in USNM 18425 and was further reconstructed by Gazin (1952). It is more than twice the size of either of the other two cuneiforms. The proximal surface is broad and deeply concave for articulation with the first metatarsal. Laterally, it articulates with the mesocu- neiform. Mesocuneiform The mesocuneiform is a small, somewhat cube-shaped bone which is rectangular in dorsal view. Medially and laterally it bears rather flat facets for articulation with the entocuneiform and ectocuneiform respectively. Proximally, it bears a very slightly concave facet for articulation with the navicular. Distally, it bears a fairly flat facet that is primarily for articulation with the second metatarsal, but overlaps slightly onto the third metatarsal laterally. Ectocuneiform The ectocuneiform is similar in size and shape to the mesocuneiform but slightly larger, whereas the proximal and distal ends are more triangular in shape. Me- dially and laterally it bears relatively flat surfaces for articulation with the me- socuneiform and cuboid respectively. Proximally, it bears a large, slightly concave facet for articulation with the navicular. Distally, it bears a large, flat surface for articulation with the third metatarsal. On the distolateral edge there is a. 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 Peabody Museum of Natural History. New Haven : The Museum
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