. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. THE DINOCEPHALIAN MANUS AND PES 23 a dozen good astragali and a couple of good calcanei of Parascapanodon. Both the astragalus and calcaneum in Titanosuchians are very similar in essential structure to the corresponding elements as described above in the case of the Tapinocephalians. They can be distinguished from the latter in that the astragalus is a large and heavier bone and the calcaneum is larger, and in the details of the ventral and penetrating grooves. In figure 7 the tibia is shown in artic
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. THE DINOCEPHALIAN MANUS AND PES 23 a dozen good astragali and a couple of good calcanei of Parascapanodon. Both the astragalus and calcaneum in Titanosuchians are very similar in essential structure to the corresponding elements as described above in the case of the Tapinocephalians. They can be distinguished from the latter in that the astragalus is a large and heavier bone and the calcaneum is larger, and in the details of the ventral and penetrating grooves. In figure 7 the tibia is shown in articulation, in figure 8 the fibula is articulated to both astragalus and calcaneum and in figure 9 the bones are shown in ventral view with the fibula Fig. 8. Parascapanodon sp. K249 X \ Dorsal view with fibula in articulation. Anteosauria (Fig. 10) In the type specimen of Micranteosaurus parvus there is an incomplete foot preserved. The calcaneum is a typical Therapsid flattened disc-like bone—thin in its middle part and with a thin postaxial edge. Both the dorsal and ventral surfaces are concave centrally with a thickened proximal and distal end where good convex facets are developed for the fibula and centrale and second distal. Its preaxial edge facing the astragalus is excavated to form a passage for the penetrating vessels. The system of grooves so typical of the Tapinocephalia and Titanosuchia are not 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
