. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. -caf. Figure 24. Stereophotographs of dorsal view of A) nearly complete right pes, and B) left calcaneum of lEucosmodon sp. (AMNH 16325). Missing from the right pes are the mesocuneiform and parts of metatarsals and phalanges of digits l-IV. Phalanges from both pedes were used to reconstruct the foot skeleton shown; their relative positions are uncertain. - Abbreviations: caf, proximal calcaneoastragalar facet; cut, cuboid facet; pt, peroneal tubercle; st, sustentaculum tali. Other Material—IsoViied ossicles (MCZ
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. -caf. Figure 24. Stereophotographs of dorsal view of A) nearly complete right pes, and B) left calcaneum of lEucosmodon sp. (AMNH 16325). Missing from the right pes are the mesocuneiform and parts of metatarsals and phalanges of digits l-IV. Phalanges from both pedes were used to reconstruct the foot skeleton shown; their relative positions are uncertain. - Abbreviations: caf, proximal calcaneoastragalar facet; cut, cuboid facet; pt, peroneal tubercle; st, sustentaculum tali. Other Material—IsoViied ossicles (MCZ 20806, 20807; UA 11996) from the Bug Creek Anthills lo- cality resemble the parafibulae of Ptilochis kiimmae in basic shape, although differences exist in the tub- erosities and surface features of the bladelike mus- cular process. A hind limb of Kryptobaatar dashzev- egi figured by Kielan-Jaworowska (1979: fig. la,c) appears to have the parafibula preserved in articu- lation with the fibula. The ossicle, which resembles the parafibula of P. kummae, contacts the fibular head near its apex; the muscular process is directed dorsallv (toward the extensor surface of the femur). Pes (Figures 4, 7, 24, 25, 26, 27; Table 1) UA 9001—The complete right tarsus is preserved almost intact; the bones of the left tarsus are disarticulated and only the calcaneum, astragalus, cuboid, navicular, ecto- and entocuneiforms can be identi- fied with confidence. The robust tuber calcanei, comprising the posterior half of the bone, is laterally compressed. Its posterior terminus is dor- soventrally expanded and convex in lat- eral profile. The bulbous proximal facet for the astragalus (astragalocalcaneal fac- et) is situated just medial to the midaxial line of the tuber and becomes narrower distally (a condition differing somewhat from that in ?Eucosmodon sp.). A low tu- berosity is developed just posterolateral to the astragalocalcaneal facet. The susten- tacular facet, pyriform in outline and f
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
