Annals of the South African Museum, Volume 64The Museum, 1974 - Natural history |
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Page 131
... extends anteriorly from a point in line with the postorbital bar to the anterior rim of the orbit ( Fig . 11 ) . There are definite indications that the plate consists of two median ossifications separated by a vertical division . The ...
... extends anteriorly from a point in line with the postorbital bar to the anterior rim of the orbit ( Fig . 11 ) . There are definite indications that the plate consists of two median ossifications separated by a vertical division . The ...
Page 133
... extends outward to the post - temporal fossa . From its base a flat roughly triangu- lar flange extends to cover the ventro - medial portion of the opisthotic . Although the sutures are indistinct it seems that the exoccipitals also ...
... extends outward to the post - temporal fossa . From its base a flat roughly triangu- lar flange extends to cover the ventro - medial portion of the opisthotic . Although the sutures are indistinct it seems that the exoccipitals also ...
Page 140
... extends forward above the orbit to make contact with the prefrontal , thereby excluding the frontal from the orbital border . The lacrimal and prefrontal have little exposure on the lateral snout surface , but the lacrimal forms a large ...
... extends forward above the orbit to make contact with the prefrontal , thereby excluding the frontal from the orbital border . The lacrimal and prefrontal have little exposure on the lateral snout surface , but the lacrimal forms a large ...
Contents
Scientific papers of L D Boonstra | 3 |
The braincase and associated structures of the cotylosaur reptile Procolophon triconiceps | 11 |
On the source of therapsids by E C OLSON | 47 |
Copyright | |
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Common terms and phrases
Africa antérieure anteriorly astragalus basioccipital basisphenoid bone Boonstra bord braincase Broom calcaneum canal canine caniniform Chronofauna Cistecephaloides Cistecephalus complexe para-basisphénoïde condyle cranial crête cynodonts dentary dicynodonts Dimetrodon distal dorsal process edge Eodicynodon être exoccipital fauna fenestra ovalis fenêtre foramen Formation forms fossa fossil frontal genera genus Gondwana Gorgonops gorgonopsians H:B index Haughton Heterodontosaurus holotype Karroo Kawingasaurus kitchingi Kombuisia l'opisthotique late Cretaceous lateral lower jaw Lycorhinus Lycorhinus angustidens Lystrosaurus maxilla maxillaire medial Moschorhinidae moyennement multituberculate museau occipital Olson opisthotic ornithischian palate parietal paroccipital pelycosaurs Permian Permien supérieur Pisanosaurus postcanine postérieure posterior posteriorly postorbital pr.q.Pt premaxilla prémaxillaire premaxillary preparietal primitive processus carré Procolophon prootic prootique pterygoid ptérygoïde quadrate région reptiles Reptilia ridge Romer SAN DIEGO Sigogneau skull roof sousorbitaire specimen squamosal stapes supraoccipital surface suture tarsus teeth terrestrial therapsids Thulborn tibia Triassic upper horizontal groove ventral vertebrates vomer Watongia Whaitsiidae zone à Cistecephalus