Annals of the South African Museum, Volume 22South African Museum, 1928 - Natual history |
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Page 60
... front 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 ...
... front 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 66
... front end ; the 2 middle ribs of the 4 are straight and parallel ; on each side of this group are 6 rather smaller , but similar , ribs , curving slightly outwards and forming the lateral lobes of the shell , but the 5th rib is weak and ...
... front end ; the 2 middle ribs of the 4 are straight and parallel ; on each side of this group are 6 rather smaller , but similar , ribs , curving slightly outwards and forming the lateral lobes of the shell , but the 5th rib is weak and ...
Page 76
... front of the beaks there is a shorter series of +12 smaller transverse teeth ; the anterior part of the hinge is broken away . Dimensions ( 77 Cape Univ . ) : Length , 55.0 mm .; Height , 35.0 mm .; Distance of beak from anterior end ...
... front of the beaks there is a shorter series of +12 smaller transverse teeth ; the anterior part of the hinge is broken away . Dimensions ( 77 Cape Univ . ) : Length , 55.0 mm .; Height , 35.0 mm .; Distance of beak from anterior end ...
Page 78
... front of umbones passing into series of 6-7 narrower radially arranged teeth between umbones , and thus into posterior series of 18-20 , becoming rather larger posteriorly and continued to end of hinge - line . Muscular impressions very ...
... front of umbones passing into series of 6-7 narrower radially arranged teeth between umbones , and thus into posterior series of 18-20 , becoming rather larger posteriorly and continued to end of hinge - line . Muscular impressions very ...
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Common terms and phrases
Anchiopella axial axis Baini Beil belong Bolivia bone Brit Calmonia Cape Univ capensis Ceres characters Chonetes Cladophlebis Clarke Conularia convex Cryphaeus Dalmanites described devon Devonian 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 Orbiculoidea Palaeoneilo Paléont Parana Phacops pinnae pinnules pits Plate pleurae pleural lobes posterior preserved Pseudoctenis Pterophyllum pygidium rachis radial Reed Rensselaeria resemblance Rhaetic Rhexoxylon Rhinesuchus ribs ring rounded S.A. Mus Salter Sandstone Schwarz secondary wood segments Seward shell side skull slightly South African Museum species specimen spines Spirifer surface Surv suture Taeniopteris TEXT-FIG Thinnfeldia thorax tracheids transverse tubercles Ulrich Upper valve veins venation Walkom width Williams and Breger XXII York State Mus Zeiller