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 17
... recognise the many points of resemblance between the Favositide and the Poritida , but I am not prepared to follow the above - mentioned distinguished authorities in regard- ing the present group as a mere sub - family of the Poritida ...
... recognise the many points of resemblance between the Favositide and the Poritida , but I am not prepared to follow the above - mentioned distinguished authorities in regard- ing the present group as a mere sub - family of the Poritida ...
Página 40
... recognised the same peculiarity - as an occasional thing - in examples of the Upper Silurian F. Forbesi , E. and H. , and also in his Vermipora ( Fletcheria ) clausa , from the same formation ( Öfversigt af K. Vetensk . Akad ...
... recognised the same peculiarity - as an occasional thing - in examples of the Upper Silurian F. Forbesi , E. and H. , and also in his Vermipora ( Fletcheria ) clausa , from the same formation ( Öfversigt af K. Vetensk . Akad ...
Página 47
... so commonly in the Upper Silurian of Europe , and which palæontologists have so long recognised under the name of F. Gothlandica , as the type of the species . Examples specifically inseparable GENERA OF FAVOSITIDÆ . 47.
... so commonly in the Upper Silurian of Europe , and which palæontologists have so long recognised under the name of F. Gothlandica , as the type of the species . Examples specifically inseparable GENERA OF FAVOSITIDÆ . 47.
Página 53
... recognised in thin transverse sections of the corallum ( Pl . I. , fig . 2 ) . Lastly , the condition of the septa in F. Gothlandica is as variable as that of the other elements of the corallum . In most of the specimens the septa are ...
... recognised in thin transverse sections of the corallum ( Pl . I. , fig . 2 ) . Lastly , the condition of the septa in F. Gothlandica is as variable as that of the other elements of the corallum . In most of the specimens the septa are ...
Página 59
... recognised at all by a mere naked - eye examination of the sur- face . Vertical sections ( Pl . II . , fig . 1 a ) show the tabulæ to be complete , slender , and slightly flexuous , placed at variable dis- tances apart , six or seven ...
... recognised at all by a mere naked - eye examination of the sur- face . Vertical sections ( Pl . II . , fig . 1 a ) show the tabulæ to be complete , slender , and slightly flexuous , placed at variable dis- tances apart , six or seven ...
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