On the Structure and Affinities of the "Tabulate Corals" of the Palaeozoic Period: With Critical Descriptions of Illustrative SpeciesWilliam Blackwood, 1879 - 342 páginas |
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Página 24
... figured similar forms ( Geol . of Canada , fig . 71 , 6 ) . Professor Safford regarded the genus as referable to the Rugosa , on account of the quadripartite character of the septa ; but the relations of the genus to Halysites were ...
... figured similar forms ( Geol . of Canada , fig . 71 , 6 ) . Professor Safford regarded the genus as referable to the Rugosa , on account of the quadripartite character of the septa ; but the relations of the genus to Halysites were ...
Página 49
... figured a small example - the youngest I have seen from the Wenlock Limestone of Dudley , in which the diameter is only about eight lines , with a height of three lines ( Pl . I. , fig . 3 ) . In the Devonian , the species seems to have ...
... figured a small example - the youngest I have seen from the Wenlock Limestone of Dudley , in which the diameter is only about eight lines , with a height of three lines ( Pl . I. , fig . 3 ) . In the Devonian , the species seems to have ...
Página 55
... figured a transverse section of this form for comparison with the typical F. Gothlandica , and need only say that as examined in this way the trivial difference in the form of the corallites is much more conspicuous than it is when the ...
... figured a transverse section of this form for comparison with the typical F. Gothlandica , and need only say that as examined in this way the trivial difference in the form of the corallites is much more conspicuous than it is when the ...
Página 59
... figured an example of this species from the Wenlock Limestone of Wenlock ( Brit . Foss . Corals , Pl . LX . , fig . 2 f ) , in which the interior of the tubes is roughened by elevated points or ridges , which , though badly figured ...
... figured an example of this species from the Wenlock Limestone of Wenlock ( Brit . Foss . Corals , Pl . LX . , fig . 2 f ) , in which the interior of the tubes is roughened by elevated points or ridges , which , though badly figured ...
Página 61
... figured by Professor Hall ( loc . cit . ) , with a doubtful reference to F. Forbesi , E. and H .; but , so far as I know , no description of it has been published . In its internal structure there is no feature of special importance to ...
... figured by Professor Hall ( loc . cit . ) , with a doubtful reference to F. Forbesi , E. and H .; but , so far as I know , no description of it has been published . In its internal structure there is no feature of special importance to ...
Outras edições - Ver tudo
On the Structure and Affinities of the "Tabulate Corals" of the Palaeozoic ... Henry Alleyne Nicholson Visualização integral - 1879 |
On the Structure and Affinities of the "Tabulate Corals" of the Palaeozoic ... Henry Alleyne Nicholson Visualização integral - 1879 |
On the Structure and Affinities of the "Tabulate Corals" of the Palaeozoic ... Henry Alleyne Nicholson Visualização integral - 1879 |
Palavras e frases frequentes
Actinozoa affinities Alcyonaria allied alveolata Alveolites appear Aulopora Beaumontia Billings Brit calices Carboniferous Char.-Corallum characters Chatetes Chonostegites cœnenchyma Columnaria Constellaria contiguous corallites contiguous tubes coral corallum D'Orb Devonian distinct Dr Lindström Dr Rominger Edwards and Haime Eifel enlarged five enlarged twenty epitheca Favosites Favositida Fistulipora Forbesi Foss genus Goldf Goldfuss Gothlandica Halysites Heliolites Heliolitida horizontal Hydrozoa interstitial Labechia lamellæ large corallites large tubes larger latter line in diameter longitudinal Lonsd M'Coy Michelinia microscopic Milne-Edwards and Haime Monticulipora mural pores numerous Ontario Pachypora perforated polygonal Polyzoa pora Portion present prismatic radiating recognised regarded resemblance ridges sclerenchyma sections Pl separated septa small corallites small tubes smaller species specimens spines spiniform Stenopora Syringopora tabulæ Tabulata Tabulate Corals tangential section Tetradium Thecia thickened thin sections tissue transverse section Upper Silurian upper surface vertical section visceral chamber walls Wenlock Wenlock Limestone Zoantharia