Annals of the South African Museum, Volume 31South African Museum, 1950 - Natual history |
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Page 85
... cells of the cortex appear rectangular in cross - section and have very small or no spaces between . On the outside there are 5-6 layers of smaller cells with thicker walls . In longitudinal view the cortical cells are rectangular and ...
... cells of the cortex appear rectangular in cross - section and have very small or no spaces between . On the outside there are 5-6 layers of smaller cells with thicker walls . In longitudinal view the cortical cells are rectangular and ...
Page 86
... cells with regular arrangement . Stretching and some disorganisation of the pericycle and endodermis occur , but in ... cells that are rounded or polygonal in cross - section . A comparison of these fossil roots with roots of similar ...
... cells with regular arrangement . Stretching and some disorganisation of the pericycle and endodermis occur , but in ... cells that are rounded or polygonal in cross - section . A comparison of these fossil roots with roots of similar ...
Page 87
... cells on the outside . Correlated with this absence of the thicker cells the cortex generally appears compressed or de- formed in various ways . The central cylinder is relatively larger , and is bounded by a definite endodermis of ...
... cells on the outside . Correlated with this absence of the thicker cells the cortex generally appears compressed or de- formed in various ways . The central cylinder is relatively larger , and is bounded by a definite endodermis of ...
Contents
II | 5 |
Pareiasaurian skulls IV V Pareiasaur teeth | 8 |
Bradysaurus baini | 18 |
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Aelurognathus Agulhas Bank Albian anteriorly Anthodon appear B.Oc B.Sph basioccipital basisphenoid beds bone Bradysaurus brain-case Broom canine Cape Province centrum cervicals collected concave convex costae Cretaceous Cynodonts dental formula described distal ectopterygoids epipterygoid fenestra ovalis figured flank forms fossils genera genotype genus glauconite Gorgonops Gorgonopsians groove Haughton Hipposaurus Hoepen holotype incisors intercentrum Interorbital Kitchin Krauss L. W. Collet Lateral view Length from premaxilla lower jaw Lycaenops maxilla median Mfongosi microdon molars narrow Neocomian nodules occiput orbit ornamented P.Orb palate palatines Pareiasaurus parietal paroccipital phosphate pineal foramen plate Pongola Pongola River posterior border posteriorly premaxilla preserved prevomers pro-otic Pter pterygoid pterygoid flanges quadrate ribs ridge shells side skull snout South African Museum species specimens squamosal structure surface suture teeth TEXT-FIG Therapsids Therocephalians tigriceps transverse Trigonia tubera Uitenhage umbo upper vacuity valve ventral margin Ventral view vertebrae Watson Whaitsids width zone Zululand