Annals of the South African Museum, Volume 64The Museum, 1974 - Natural history |
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Page 22
... region so the precise position can only be guessed , but in any case this represents a generally reptilian , post - quadrate position . The stapes itself is specialized from the presumed primitive condition by the absence of both ...
... region so the precise position can only be guessed , but in any case this represents a generally reptilian , post - quadrate position . The stapes itself is specialized from the presumed primitive condition by the absence of both ...
Page 51
... region of the arch and the reflected lamina , this in view of the special strengthening of the bone of the lamina . Examination of Dr Sigogneau's invaluable monograph on the gorgonopsids ( Sigogneau 1970 ) , and other sources , has ...
... region of the arch and the reflected lamina , this in view of the special strengthening of the bone of the lamina . Examination of Dr Sigogneau's invaluable monograph on the gorgonopsids ( Sigogneau 1970 ) , and other sources , has ...
Page 138
... region . ' Investigations into the anatomy of Cistecephalus undertaken for the purposes of the present work make it clear that the genus's strikingly unusual cranial structure demands familial distinction , on the lines proposed by ...
... region . ' Investigations into the anatomy of Cistecephalus undertaken for the purposes of the present work make it clear that the genus's strikingly unusual cranial structure demands familial distinction , on the lines proposed by ...
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