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
... founded on the existence of the lamellar diaphragms that close the visceral chamber of the corallites at different heights , and differ from the dissepiments of the Astraida by not being dependent on the septa , and forming as many ...
... founded on the existence of the lamellar diaphragms that close the visceral chamber of the corallites at different heights , and differ from the dissepiments of the Astraida by not being dependent on the septa , and forming as many ...
Página 25
... founded by Mr Moseley ( Phil . Trans . , vol . clxvi . p . 92 , 1876 ) for the recep- tion of the extraordinary recent Heliopora , and the long ex- tinct Heliolites , Plasmopora , and allied forms . The corallum in this family ( fig ...
... founded by Mr Moseley ( Phil . Trans . , vol . clxvi . p . 92 , 1876 ) for the recep- tion of the extraordinary recent Heliopora , and the long ex- tinct Heliolites , Plasmopora , and allied forms . The corallum in this family ( fig ...
Página 40
... founded upon examples of Favosites , in which spiniform septa are developed ; but the variability of this character renders this division an untenable one . The tabulæ in the most typical forms of Favosites are com- plete transverse ...
... founded upon examples of Favosites , in which spiniform septa are developed ; but the variability of this character renders this division an untenable one . The tabulæ in the most typical forms of Favosites are com- plete transverse ...
Página 43
... founded upon so many forms of different affin- ities . The coral in question , however , in no way agrees with any of the forms included by Goldfuss under the head of Cala- mopora - not even with C. infundibulifera , now known as ...
... founded upon so many forms of different affin- ities . The coral in question , however , in no way agrees with any of the forms included by Goldfuss under the head of Cala- mopora - not even with C. infundibulifera , now known as ...
Página 46
... , my determination has been founded upon an examination of actual specimens derived from the same formation as that which yielded examples to the author quoted . half line in diameter , sometimes less , and often 46 TABULATE CORALS .
... , my determination has been founded upon an examination of actual specimens derived from the same formation as that which yielded examples to the author quoted . half line in diameter , sometimes less , and often 46 TABULATE CORALS .
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