Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1990 - Natural history |
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Page 371
... demonstrated below . X - rays of the specimen reveal root canals filled with dense haematite ; these show that only a very thin layer of maxillary bone roofs the deep tooth sockets : the canal fillings terminate at the alveolar border ...
... demonstrated below . X - rays of the specimen reveal root canals filled with dense haematite ; these show that only a very thin layer of maxillary bone roofs the deep tooth sockets : the canal fillings terminate at the alveolar border ...
Page 372
... demonstrating the presence of an upper tooth in overlapping occlusion with 6 and 7 . Postcanine 7 is an old tooth ; its posterior wear facet bears a wide , deep , smoothly rounded groove . This groove must have been formed by a step ...
... demonstrating the presence of an upper tooth in overlapping occlusion with 6 and 7 . Postcanine 7 is an old tooth ; its posterior wear facet bears a wide , deep , smoothly rounded groove . This groove must have been formed by a step ...
Page 379
... demonstrated for the dentary still applies , is shown by the following teeth : 9 has first and second wear stage facets , 12 is unusual in that first , second and third stage facets are present , whereas 7 has a partially obliterated ...
... demonstrated for the dentary still applies , is shown by the following teeth : 9 has first and second wear stage facets , 12 is unusual in that first , second and third stage facets are present , whereas 7 has a partially obliterated ...
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Common terms and phrases
abbreviations according to chronology age from front ANNALS bicuspidata Gould canine Cape Town Crompton & Charig crown is damaged cusplet dentary tooth dentition described Haughton distal ridges edges of occluding facet forms facet migrates figures Gastropoda Heterodontosaurus tucki holotype Hopson included angle indicated labial surface Labial view Lanasaurus scalpridens Gow Leda Lingual view Lingually and labially lower teeth Lyco Lycorhinus angustidens Haughton Lycorhinus consors Thulborn Lycorhinus type maxilla belonged maxillary mesiodistal namacolus Nucula occluding upper occlusal view opposing upper paper paratypes parentheses photographs Postcanine posterior groove punctuation REFERABLE TO LYCORHINUS registration number replacement rhinus Roman numerals sagittal plane Santa Luca saurus Scale bar scientific name second wear stage separate author's name shouldered italics Smith South African Museum species specimen UCL A100 staggered occlusal Steps between adjacent striations subheadings are shouldered Synonymy arrangement tooth row triplets UCL A100 Thulborn upper tooth volume number Von Huene wear facets wear stage facet X-rays