Annals of the South African Museum, Volume 56The Museum, 1971 - Natural history |
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Page 175
... presphenoidal plate . Common to all species of Lystrosaurus is a shortening of the skull base anterior to the basioccipital . Thus the presphenoid ossification , usually far forward in dicynodonts , lies immediately in front of the ...
... presphenoidal plate . Common to all species of Lystrosaurus is a shortening of the skull base anterior to the basioccipital . Thus the presphenoid ossification , usually far forward in dicynodonts , lies immediately in front of the ...
Page 177
... presphenoid , to form a possibly complete interorbital septum . Cox ( 1959 ) has suggested a comparable condition in ... presphenoid . He concluded that there were three elements in the basicranial axis of all therapsids , Dicynodon ...
... presphenoid , to form a possibly complete interorbital septum . Cox ( 1959 ) has suggested a comparable condition in ... presphenoid . He concluded that there were three elements in the basicranial axis of all therapsids , Dicynodon ...
Page 262
... presphenoid , is present . Haines ( 1950 ) has shown that a bony interorbital septum is present in several mammals , and defines the mammalian presphenoid as being the bone in the adult skull which , separate in most mammals , ossifies ...
... presphenoid , is present . Haines ( 1950 ) has shown that a bony interorbital septum is present in several mammals , and defines the mammalian presphenoid as being the bone in the adult skull which , separate in most mammals , ossifies ...
Contents
BEAUFORT BEDS OF THE KAROO | 2 |
A review of previous work | 22 |
The nonreptilian elements in the fauna and the flora | 29 |
Copyright | |
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Common terms and phrases
animals Anteosaurus anteriorly articular Baard's Quarry basicranial axis basioccipital basisphenoid bone Boné & Singer Boonstra Bovidae Bradysaurus braincase Broom Bushmen Cape condyle cranial Daptocephalus dentary deposits described Dicynodon testudirostris dicynodonts Dinocephalia dinocephalian Emydops Equus Ewer external adductor muscle Family fenestra foramen fossa fossils frontal frontonasal ridge genera genus Gorgonopsia groove groups Haughton Hendey Hipparion horizon horn cores Incertae sedis inserted interpterygoidal Jonkeria Karoo Kingoria Kleinzee Langebaanweg Langebaanweg fauna Lystrosaurus Lystrosaurus declivis mammalian mammals mandible masticatory cycle maxilla median Moschops murrayi musculature nasal Nharo obliquus capitis occipital Olduvai orbitosphenoid ossification palatal rim palatine pareiasaurs Permian Pleistocene Pliocene posterior posteriorly premaxilla present presphenoid Pristerodon prootic pterygoid quadrate Quarry assemblage referred region represented reptiles septum shoreline skull roof snout South African Museum species specimens squamosal Struthiocephalus surface Tapinocephalus Tapinocephalus zone teeth therapsids therocephalian Titanosuchus trap tusk Varswater bed vertebrates