Annals of the South African Museum, Volume 50South African Museum, 1968 - Natual history |
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Page 27
... structure of the girdles and limbs . The work on the pareiasaurs was completed many years ago ( 1932 ) , but it is only recently that I have been able to round off the study of these structures in the oldest known therapsids ( 1966a & b ) ...
... structure of the girdles and limbs . The work on the pareiasaurs was completed many years ago ( 1932 ) , but it is only recently that I have been able to round off the study of these structures in the oldest known therapsids ( 1966a & b ) ...
Page 28
... structure of the girdles and limbs of the early therap- sids differ in kind as well as in degree . Some parallelism is evident . The fact that in the pareiasaurs many of these advances are also shown seems to indicate that the ...
... structure of the girdles and limbs of the early therap- sids differ in kind as well as in degree . Some parallelism is evident . The fact that in the pareiasaurs many of these advances are also shown seems to indicate that the ...
Page 38
... structural stage achieved by the pelycosaurs is not very radical . The loss of the median central and the reduction ... structure in which the two proximal bones , both wide , lay side by side so that the tarsus was wide proximally . In ...
... structural stage achieved by the pelycosaurs is not very radical . The loss of the median central and the reduction ... structure in which the two proximal bones , both wide , lay side by side so that the tarsus was wide proximally . In ...
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Common terms and phrases
abdomen adcauline adnate anomodonts antennal joint Anteosaurus anteriorly apically basal cell base basioccipital basisphenoid bone braincase Cape Town capensis carapace carapace length Clinus acuminatus cranial cross-sections Cyrtosia developed Dicynodon Dinocephalia distal distinctly dorsal dorsum sellae Empidideicus endocranial cavity epipterygoid exoccipital face fenestra ovalis foramen forms frons genus groove head hind margins holotype hydrotheca IKMT internode Jonkeria last sternite Lateral view longer longitudinal Lystrosaurus mantle length material median septum n.sp narrow nematothecae nerve occipital olfactory opisthotic orbitosphenoid ossified parasphenoidal rostrum parietal pereiopods photophores Plonia posteriorly proboscis proötic pterygoid quadrate reddish brownish region ridge sagittal sella turcica septosphenoid Sergestes shorter side skull slender slightly snout South African Museum species specimen sphenoidal sphenoidal complex spines stapes sternite Struthiocephalus suckers SUID-AFRIKAANSE MUSEUM supraoccipital surface sutural Tapinocephalus Tapinocephalus zone tergites therapsids thorax transverse trigeminal tube upper vein Ventral view volume number vomer wavy underlining wings