Siluria the History of the Oldest Known Rocks Containing Organic Remains, with a Brief Sketch of the Distribution of Gold Over the Earth by Roderick Impey MurchisonMurray, 1854 - 527 pages |
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Common terms and phrases
animals Atrypa auriferous band Barrande beds Bohemia brachiopods Britain British calcareous Caradoc Caradoc sandstone carboniferous rocks characteristic coal conglomerates contain corals crustaceans crystalline deposits described detected Devonian Devonian rocks district division eruptive exhibited fishes flagstones flank forms Foss fossiliferous fossils genera genus Geol geological geologists gold Goniatites government surveyors granite graptolites grey greywacke grit Hills igneous rocks Journ Lingula Llandeilo Llandeilo flags Llandeilo formation Lond Longmynd Lower and Upper Lower Silurian Lower Silurian rocks lowest M'Coy masses mineral North Wales numerous occur Old Red Sandstone older organic remains Orthida Orthis Orthoceratites overlying paleozoic Pentamerus Permian Phacops portion primeval Professor Sedgwick Quart region Rhenish Russia Salter schists shale shells Shropshire Silurian fossils Silurian strata Silurian System slates slaty species Spirifer stone strata Syst thickness tracts trilobites Upper Silurian rocks Ural Mountains Verneuil Wenlock limestone Wenlock shale whilst woodcut Woolhope