. The Quarterly journal of the Geological Society of London. No. 86. C />. Photomicro. Bemrose, Collo. Quart. Journ. Geol. Soc. Vol. LX, Pl. XXXV. Fig. 1. x No. 99. Fig. 2. x 32.

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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845