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 1
... Foss . Corals , Intro- duction , 1850 ; and Polypiers Foss . des Terr . Pal . , 1851 ) . In this division was included a large assemblage of Corals , ranging from the Silurian period to the present day , and often of very diverse ...
... Foss . Corals , Intro- duction , 1850 ; and Polypiers Foss . des Terr . Pal . , 1851 ) . In this division was included a large assemblage of Corals , ranging from the Silurian period to the present day , and often of very diverse ...
Página 20
... Foss . des Terr . Pal . , 310 , 1851 ) having been previously placed by them in the Al- cyonaria . The alleged characters of the family are , that the pyriform corallites are destitute of " tabulæ , " and possess nothing but vertical ...
... Foss . des Terr . Pal . , 310 , 1851 ) having been previously placed by them in the Al- cyonaria . The alleged characters of the family are , that the pyriform corallites are destitute of " tabulæ , " and possess nothing but vertical ...
Página 37
... Foss . des Terr . Pal . , p . 246 , 1851 . Astrocerium , Hall , Pal . N.Y. , vol . ii . p . 120 , 1851 . Gen. Char . - Corallum massive or branched , composed of nu- merous more or less conspicuously polygonal corallites , which are in ...
... Foss . des Terr . Pal . , p . 246 , 1851 . Astrocerium , Hall , Pal . N.Y. , vol . ii . p . 120 , 1851 . Gen. Char . - Corallum massive or branched , composed of nu- merous more or less conspicuously polygonal corallites , which are in ...
Página 42
... ( Foss . Cor . of Michigan , p . 19 ) , that " the Silurian forms differ from the Devonian Favosites by invariably having simple dia- phragms , and by the spinulose character of their radial crests . " At least one Silurian species of the ...
... ( Foss . Cor . of Michigan , p . 19 ) , that " the Silurian forms differ from the Devonian Favosites by invariably having simple dia- phragms , and by the spinulose character of their radial crests . " At least one Silurian species of the ...
Página 44
... ( Foss . Cor . of Michigan , p . 32 ) .- is pores in Michelinia , De Kon . , is another close ally of Favosites , for I am unable to agree with Dr Lindström in thinking that there any essential difference in the nature of the mural these ...
... ( Foss . Cor . of Michigan , p . 32 ) .- is pores in Michelinia , De Kon . , is another close ally of Favosites , for I am unable to agree with Dr Lindström in thinking that there any essential difference in the nature of the mural these ...
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