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Journal of Palaeogeography
Fig. 10 | Journal of Palaeogeography

Fig. 10

From: Labechia carbonaria Smith 1932 in the Early Carboniferous of England; affinity, palaeogeographic position and implications for the geological history of stromatoporoid-type sponges

Fig. 10

Skeletal architecture of Labechia conferta (Lonsdale) in thin section, from the Much Wenlock Limestone Formation, middle Silurian of Wren’s Nest, Dudley, England, to show comparison with Labechia carbonaria in Figs. 7, 8, 9. a Whole thin section in vertical section showing the arrangement of pillars and cyst plates in a laminar form of L. conferta. b & c Enlargements of the yellow box in a, showing both VS and TS sections within the same area of thin section, due to curvature of the stromatoporoid. Thus the centre of the view is TS and other areas are VS. b is in plane-polarised light and c is in cross-polarised light. Sample from Sedgwick Museum, Cambridge, UK, number X.50347.187

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