. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Fig. 21. Hepfodon posticus. MCZ 17670. Right distal tarsals. Top row: (from left to right) cuboid, medial view; na- vicular, ecto- and mesocuneiforms, lateral view; cuboid and na/iculor, proximal view. Middle row: distal tarsals in, from left to right, posterior, lateral, anterior and medial views. Bottom row: entocuneiform in anterolateral view and cuboid, ecto- and mesocuneiforms in distal view. All natural size. Letters indicate articular contacts. aliis for most of its length. An irregularly oval, saddle-shaped cu
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Fig. 21. Hepfodon posticus. MCZ 17670. Right distal tarsals. Top row: (from left to right) cuboid, medial view; na- vicular, ecto- and mesocuneiforms, lateral view; cuboid and na/iculor, proximal view. Middle row: distal tarsals in, from left to right, posterior, lateral, anterior and medial views. Bottom row: entocuneiform in anterolateral view and cuboid, ecto- and mesocuneiforms in distal view. All natural size. Letters indicate articular contacts. aliis for most of its length. An irregularly oval, saddle-shaped cuboid facet occupies the entire distal end of the calcaneum. A pit on the lateral side of the calcaneum at the level of the lateral astragalar facet pre- sumably marks the insertion of part of the short lateral ligament. The cuboid (see Fig. 21) is relatively high and narrow, with a moderately large posterior tuberosity. The saddle-shaped calcaneal facet shares the proximal surface with a small elongate astragalar facet which does not reach the front of the cuboid. The proximal half of the medial side of the cuboid bears a small anterior facet and a large slightly concave posterior facet for the navicular. Just below the latter is a medio- distally inclined facet for the ectocuneiform. There is also a small anterior facet for the ectocuneiform. The facet for the fourth metatarsal covers the distal surface. The navicular is about as wide as it is deep (anteroposteriorly) with a saddle- shaped proximal surface for articulation with the astragalus. A small oblique facet at the anterolateral corner articulated with the calcaneum. The lateral side bears a large, gently convex posterior facet and a small anterior facet for the cuboid. On the posterior side there is a posterodorsally- facing facet for the entocuneiform. The distal surface bears a large triangular facet for the ectocuneiform and a small, roughly quadrangular facet for the mesocuneiform. The ectocuneiform is triangular i
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
