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 369
... wear facets and labial crown surfaces . ( The narrower teeth of L. scalpridens have an included angle of 45 ° . Thus , although the angle is age dependent , it is worth stressing for comparison with Heterodon- tosaurus that the new ...
... wear facets and labial crown surfaces . ( The narrower teeth of L. scalpridens have an included angle of 45 ° . Thus , although the angle is age dependent , it is worth stressing for comparison with Heterodon- tosaurus that the new ...
Page 372
... facets dipping slightly away from each other . Tooth 4 is very similar though more worn and better preserved . Hopson's ( 1980 ) interpretation of tooth 5 , i.e. one major wear ... wear facet bears a wide , deep , smoothly rounded groove ...
... facets dipping slightly away from each other . Tooth 4 is very similar though more worn and better preserved . Hopson's ( 1980 ) interpretation of tooth 5 , i.e. one major wear ... wear facet bears a wide , deep , smoothly rounded groove ...
Page 373
... faceted and is raised labiad of 10 , and it was thus opposed by the successor to the tooth responsible for the posterior facet on 10 . It is suggested that the differences in wear facet orientation that Hopson ( 1980 ) recorded ...
... faceted and is raised labiad of 10 , and it was thus opposed by the successor to the tooth responsible for the posterior facet on 10 . It is suggested that the differences in wear facet orientation that Hopson ( 1980 ) recorded ...
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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