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On the Structure and Affinities of the Tabulate Corals of the Palaeozoic ...
Henry Alleyne Nicholson
Pré-visualização indisponível - 2015
actual affinities allied Alveolites appear base become Bill calices central Chaetetes characters circular closely colony Columnaria comparatively complete composed condition contiguous coral corallites corallum deposit described developed Devonian diameter distinct doubt Edwards enlarged entirely epitheca examination examples exhibit existence extent fact Favosites Favositidae figured five Formation Foss founded genus give given Goldf Gothlandica Hall horizontal included known larger latter less Limestone Lower M'Coy margins Michigan microscopic Milne-Edwards and Haime Monticulipora mural pores nature nearly numerous observed original Pachypora placed polygonal Portion possess present recognised referred regarded remote resemblance ridges Rominger rounded rows seen separated septa shape shown similar single smaller sometimes species specimens spines structure surface tabulae tangential section thick thickened thin true tubes typical Upper Silurian usually vertical section visceral chamber walls