Annals of the South African Museum, Volume 46South African Museum, 1963 - Natural history |
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Page 236
... tooth is loosely held by its alveolus ( stage I ) . It shows signs of wear and is terminated by three small cusps . The upper portion of the crown is slightly narrower antero - posteriorly than the lower , and the tooth therefore has a ...
... tooth is loosely held by its alveolus ( stage I ) . It shows signs of wear and is terminated by three small cusps . The upper portion of the crown is slightly narrower antero - posteriorly than the lower , and the tooth therefore has a ...
Page 249
... Tooth replacement Only in one case are a functional tooth and its successor preserved and visible in a single alveolus . This supplies important information on how tooth replacement actually takes place , and details on the structure of ...
... Tooth replacement Only in one case are a functional tooth and its successor preserved and visible in a single alveolus . This supplies important information on how tooth replacement actually takes place , and details on the structure of ...
Page 509
... tooth of figure 13 H is lost and no new tooth is present in this position . Therefore , the tooth in position 2 in figure 13 I is the first functional ... tooth position 2. In figure 14 TOOTH REPLACEMENT IN THRINAXODON LIORHINUS SEELEY 509.
... tooth of figure 13 H is lost and no new tooth is present in this position . Therefore , the tooth in position 2 in figure 13 I is the first functional ... tooth position 2. In figure 14 TOOTH REPLACEMENT IN THRINAXODON LIORHINUS SEELEY 509.
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Common terms and phrases
abdomen Algoa Bay alveolus apical arranged atrial Barnard basal base Brnrd canine Cape Province Cape Town cingular cusps coast collection colony crown cynodonts dead dentary dentition described Description developed Diademodon diameter distal dorsal view Ecnomus Ericiolacerta erupted Eulalia F. H. Talbot coll False Bay fathoms female functional tooth genus gonad gonothecae Halopteris Hartmeyer holotype hydrocladia hydrotheca incisors inner internode Jonkeria labial larvae legs length lingual lobes longitudinal mandible margin material maxilla median Michaelsen Millard Mossel Bay Name of author Natal nematothecae pair Palaeontology paper papillae plate Polychaeta postcanine row postcanines posterior present protoconch radula replacing tooth SAMH sclerite segment setae shell side siphon slender slightly Sluiter South African Museum species spines stem surface synonymy Tapinocephalia teeth tergite thorax Thrinaxodon tooth replacement transverse Trichoptera type specimen ventral volume number wellsi whorls yellowish zooids Zool Zoology Zoology and Palaeontology Zoology excl