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
... mesial and distal ' gum lines ' ( for example see tooth 5 ) . The final analogy is that the teeth have a symmetrical cold - chisel shape with a constant included angle of about 75 ° between wear facets and labial crown surfaces . ( The ...
... mesial and distal ' gum lines ' ( for example see tooth 5 ) . The final analogy is that the teeth have a symmetrical cold - chisel shape with a constant included angle of about 75 ° between wear facets and labial crown surfaces . ( The ...
Page 371
... mesial cusplet and above it the margin of the crown is damaged ( i.e. there may have been other cusplets ) . The posterior half of the labial surface of the crown is damaged and this looks like wear , as the damaged area has a sharp but ...
... mesial cusplet and above it the margin of the crown is damaged ( i.e. there may have been other cusplets ) . The posterior half of the labial surface of the crown is damaged and this looks like wear , as the damaged area has a sharp but ...
Page 372
... mesial edge of 8. By tilting the specimen it is poss- ible to see that this facet lies on the same arc as the distal facet on 7 - these facets are thus attributable to the same upper tooth . The author is not convinced that there is ...
... mesial edge of 8. By tilting the specimen it is poss- ible to see that this facet lies on the same arc as the distal facet on 7 - these facets are thus attributable to the same upper tooth . The author is not convinced that there is ...
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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