Annals of the South African Museum, Volume 56The Museum, 1971 - Natural history |
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Page 237
... maxillary snout development . Size of tusk . 3 . Presence or absence of transverse frontonasal ridge . 4 Presence or absence of frontal tuberosities and bosses . 5 . Presence or absence of prefrontal bosses . 6 . Presence or absence of ...
... maxillary snout development . Size of tusk . 3 . Presence or absence of transverse frontonasal ridge . 4 Presence or absence of frontal tuberosities and bosses . 5 . Presence or absence of prefrontal bosses . 6 . Presence or absence of ...
Page 245
... frontonasal ridges and frontal bosses . It is the only species in this group in which the facial surface of the premaxilla is not flat , and the smoothly curved snout , sloping back to the frontonasal ridge ... ridge . Since the snout and ...
... frontonasal ridges and frontal bosses . It is the only species in this group in which the facial surface of the premaxilla is not flat , and the smoothly curved snout , sloping back to the frontonasal ridge ... ridge . Since the snout and ...
Page 248
... frontal surfaces . In these individuals the anterior two - thirds of the nasal is not included in the premaxillary plane , but slopes back to the frontonasal ridge , thus separating the frontal and premaxillary surface planes . These ...
... frontal surfaces . In these individuals the anterior two - thirds of the nasal is not included in the premaxillary plane , but slopes back to the frontonasal ridge , thus separating the frontal and premaxillary surface planes . These ...
Contents
South African Museum Cape Town | 21 |
A review of previous work | 54 |
Origin of the Tapinocephalus zone reptilian fauna | 62 |
Copyright | |
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Common terms and phrases
animals anomodont Anteosaurus anteriorly assemblage Baard's Quarry basicranial axis basioccipital basisphenoid Beaufort bones Boonstra Bradysaurus braincase Broom Bushmen caniniform Cape collected condyle cranial curvatus Daptocephalus dentary deposits described Dicynodon testudirostris dicynodonts Dinocephalia dinocephalian dorsal edge Emydops external adductor muscle fauna fenestra flange foramen fossa fossils frontal frontonasal ridge genera genus geol Gorgonopsia groove groups Haughton Hendey horizon horn cores Incertae sedis interpterygoidal Jonkeria Karoo Langebaanweg lateral Lond Lystrosaurus Lystrosaurus declivis mammals mandible masticatory cycle maxilla mcCaigi median Moschops murrayi musculature nasal Nharo obliquus capitis occipital orbitosphenoid palatine pareiasaurian pareiasaurs Permian plane Pleistocene posterior posteriorly premaxilla presphenoid Pristerognathus Proc pterygoid quadrate region reptiles Reptilia Seeley septum skeleton skin skull roof snout South African Museum species squamosal steenbok Struthiocephalus surface Tapinocephalus zone teeth therapsids therocephalian Titanosuchus traps Triassic Triassic dicynodonts tusk Varswater bed vertebrates whaitsi zool Х Х Х