Siluria: The History of the Oldest Known Rocks Containing Organic Remains, with a Brief Sketch of the Distribution of Gold Over the Earth |
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Common terms and phrases
animals Atrypa auriferous band Barrande beds Bohemia Britain British calcareous Caradoc Caradoc sandstone carboniferous limestone carboniferous rocks characteristic coal coal-fields conglomerates contain corals crustacean crystalline deposits described detected Devonian Devonian rocks district England eruptive exhibited fishes flagstones flank forms Foss fossiliferous fossils genera genus Geol geological geologists gold Goniatites government surveyors granite graptolites grauwacke grey greywacke grit Hills igneous rocks Journ Leptæna Lingula Llandeilo Llandeilo flags Llandeilo formation Lond Longmynd 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 plants portion primeval Professor Sedgwick Quart region 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