Annals of the South African Museum, Volume 22South African Museum, 1928 - Natual history |
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Page 2
... . I , fig . 1 ) , is seen to consist of radially seriated tracheids and uniseriate medullary rays . * Du Toit , 1918 , p . 36 . There are clearly defined , concentric , growth rings . 2 Annals of the South African Museum .
... . I , fig . 1 ) , is seen to consist of radially seriated tracheids and uniseriate medullary rays . * Du Toit , 1918 , p . 36 . There are clearly defined , concentric , growth rings . 2 Annals of the South African Museum .
Page 3
... ring . In some of the rings ( compound rings , cf. Barber * ) there are zones of elements of the late wood type occur- ring in the middle of the early type of wood ( Pl . I , fig . 1 , a ) . These do not usually † show any abrupt change ...
... ring . In some of the rings ( compound rings , cf. Barber * ) there are zones of elements of the late wood type occur- ring in the middle of the early type of wood ( Pl . I , fig . 1 , a ) . These do not usually † show any abrupt change ...
Page 5
... rings is of general occurrence in these Southern Hemisphere Permo - Carboniferous woods , and is a feature which has been much discussed , as some Palaeozoic woods from the Northern province are usually without rings . I do not propose ...
... rings is of general occurrence in these Southern Hemisphere Permo - Carboniferous woods , and is a feature which has been much discussed , as some Palaeozoic woods from the Northern province are usually without rings . I do not propose ...
Page 8
... rings of growth are present . Large tangential splits in the secondary wood , with small strands included in them of spiral , thickened elements are an important feature . Large rays with " leaf traces " are present . The traces are ...
... rings of growth are present . Large tangential splits in the secondary wood , with small strands included in them of spiral , thickened elements are an important feature . Large rays with " leaf traces " are present . The traces are ...
Page 9
... rings . Sometimes the rings appear to be composite * or compound , possessing minor darker bands in the early wood . These , on closer examination , are seen to be produced by a disturbance in the seriation of the tracheids , due to ...
... rings . Sometimes the rings appear to be composite * or compound , possessing minor darker bands in the early wood . These , on closer examination , are seen to be produced by a disturbance in the seriation of the tracheids , due to ...
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Common terms and phrases
Anchiopella axial axis Baini Beil belong Bolivia bone Brit Calmonia Cape Univ Ceres characters Chonetes Cladophlebis Clarke Conularia convex Cryphaeus Dalmanites described devon Devonian Feist figs figured Flora Foss fossil frond frontal genal angles genus Geol Ginkgoites glabella granules head-shield Herscheli Homalonotus Ibid internal cast Knod Kozlowski lateral furrows length margin median Modiomorpha Molteno Molteno Beds Neues Jahrb Nuculites oblique Palaeoneilo Paléont Parana parasphenoid Phacops pinnae pinnules pits Plate pleurae pleural lobes posterior preserved Pseudoctenis Pterophyllum pterygoid pygidium rachis radial Reed Rensselaeria resemblance Rhaetic Rhexoxylon Rhinesuchus ribs ring rounded S.A. Mus Salter Sandstone Schwarz segments Seward shell side skull slightly South African Museum species specimen spines Spirifer surface Surv suture Taeniopteris Tapinocephalus TEXT-FIG Thinnfeldia thorax tracheids transverse tubercles Ulrich Upper valve veins venation Walkom width Williams and Breger XXII York State Mus Zeiller