Siluria: A History of the Oldest Fossiliferous Rocks and Their Foundations; with a Brief Sketch of the Distribution of Gold Over the Earth |
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Siluria: A History of the Oldest Fossiliferous Rocks and Their Foundations ... Roderick Impey Murchison No preview available - 2015 |
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Asaphus Atrypa Aymestry band beds brachiopods Britain British Builth calcareous Cambrian Caradoc sandstone coal conglomerate containing corals crustacean crystalline deposits described detected Devonian Devonian rocks Dudley eruptive exhibited fishes flagstones flank forms Foss fossiliferous fossils genera genus Geol Geological geologists gneiss Graptolites grey greywacke grits Hill igneous rocks Journ Leptæna Lingula Lingula Flags Llandeilo Llandeilo flags Llandovery Llandovery rocks Longmynd Lower Silurian Lower Silurian rocks lowest M'Coy Malvern masses Mountains North Wales occur Old Red Sandstone organic remains Orthis Orthoceras overlying paleozoic Pentamerus Permian Phacops portion Portl Professor Pterygotus quartz rocks Rhynchonella Russia Salter schists Scotland Sedgwick shale shells Shropshire Silurian fossils Silurian strata Silurian System slates slaty species Spirifer Stiper Stones strata Strophomena Syst thickness tract trilobites Upper Llandovery Upper Silurian rocks Ural Ural Mountains Wenlock limestone Wenlock shale whilst woodcut Woolhope Zechstein zone