Annals of the South African Museum, Volume 22South African Museum, 1928 - Natual history |
From inside the book
Results 1-5 of 100
Page 14
... width 22μ , and the length radially 140μ to 170μ . One peculiar , though inconstant , feature of this wood is the presence of some medullary rays of exceptionally large cells , the height of the individual cells . being 40-60μ , the ...
... width 22μ , and the length radially 140μ to 170μ . One peculiar , though inconstant , feature of this wood is the presence of some medullary rays of exceptionally large cells , the height of the individual cells . being 40-60μ , the ...
Page 31
... Width " " · · 13.0 mm . 9.5 29 Remarks . There is only one specimen of this interesting fossil known to me from the Bokkeveld Beds , and it was collected by me at the roadside cutting near Buffelskraal , between De Doorns and Tunnel ...
... Width " " · · 13.0 mm . 9.5 29 Remarks . There is only one specimen of this interesting fossil known to me from the Bokkeveld Beds , and it was collected by me at the roadside cutting near Buffelskraal , between De Doorns and Tunnel ...
Page 32
... width 13 mm . The only recorded example of a blastoid from the Devonian of the southern hemisphere is that figured by Knod * from Bolivia as Codaster aff . pyramidatus Shumard , † and it much resembles our specimen , differing chiefly ...
... width 13 mm . The only recorded example of a blastoid from the Devonian of the southern hemisphere is that figured by Knod * from Bolivia as Codaster aff . pyramidatus Shumard , † and it much resembles our specimen , differing chiefly ...
Page 36
... width at distances of every 9-12 con- centric lines , indicating periods of growth . Closely placed low rounded equidistant radial lines are visible also on the anterior and posterior slopes of the valve , but they belong to an inner ...
... width at distances of every 9-12 con- centric lines , indicating periods of growth . Closely placed low rounded equidistant radial lines are visible also on the anterior and posterior slopes of the valve , but they belong to an inner ...
Page 38
... Width ( max . ) • 18.0 mm . . 16.5 mm . Remarks . There is only one specimen of this interesting shell which was collected from Keurbosch , Hex River district , and it is in the Cape University Collection ( 289 a , b ) . The impression ...
... Width ( max . ) • 18.0 mm . . 16.5 mm . Remarks . There is only one specimen of this interesting shell which was collected from Keurbosch , Hex River district , and it is in the Cape University Collection ( 289 a , b ) . The impression ...
Other editions - View all
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