Annals of the South African Museum, Volume 22South African Museum, 1928 - Natual history |
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Page 31
... edge of the specimen is slightly imperfect , and the articulation of the stem with the theca is somewhat broken . The arrangement of the plates is more regular than in Anomalocystis disparilis Hall * from the upper part of the Oriskany ...
... edge of the specimen is slightly imperfect , and the articulation of the stem with the theca is somewhat broken . The arrangement of the plates is more regular than in Anomalocystis disparilis Hall * from the upper part of the Oriskany ...
Page 60
... edge , and a low , short , thick median septum extends forwards between the rather deeply sunk , well - defined sub- triangular muscle - scars which are in contact along their shorter inner sides and embrace in front a faint semi ...
... edge , and a low , short , thick median septum extends forwards between the rather deeply sunk , well - defined sub- triangular muscle - scars which are in contact along their shorter inner sides and embrace in front a faint semi ...
Page 78
... edge nearly straight , slightly oblique , sloping downwards to posterior end . Teeth transverse , forming short series of about 8 in front of umbones passing into series of 6-7 narrower radially arranged teeth between umbones , and thus ...
... edge nearly straight , slightly oblique , sloping downwards to posterior end . Teeth transverse , forming short series of about 8 in front of umbones passing into series of 6-7 narrower radially arranged teeth between umbones , and thus ...
Page 86
... edge is broken as well as the sub- umbonal portion of the shell , but the concentric growth - lines and occasional stronger ridges show its general shape . Dimensions : - Length . Height Thickness · c . 41 mm . 25 mm . 14 mm ...
... edge is broken as well as the sub- umbonal portion of the shell , but the concentric growth - lines and occasional stronger ridges show its general shape . Dimensions : - Length . Height Thickness · c . 41 mm . 25 mm . 14 mm ...
Page 111
... edge , with steep or nearly vertical slightly - concave slope below it ; anterior slope convex , rounded ; maximum height of shell in front of apex . Surface marked with strong concentric unequal growth- striae , crowded together on ...
... edge , with steep or nearly vertical slightly - concave slope below it ; anterior slope convex , rounded ; maximum height of shell in front of apex . Surface marked with strong concentric unequal growth- striae , crowded together on ...
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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