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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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North Africa
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Ghadames Basin (1)
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Libya (1)
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Tunisia (1)
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Sahara (1)
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Europe
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North America
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fossils
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Graptolithina (9)
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ichnofossils (1)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Trilobitomorpha
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Trilobita (2)
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Brachiopoda
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Articulata
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Strophomenida (2)
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Cnidaria
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Anthozoa
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acritarchs
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geologic age
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Paleozoic
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Silurian
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Upper Silurian (12)
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igneous rocks
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igneous rocks (1)
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metamorphic rocks
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turbidite (1)
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Primary terms
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Africa
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North Africa
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Ghadames Basin (1)
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Libya (1)
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Tunisia (1)
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Sahara (1)
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West Africa
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Guinea-Bissau (1)
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Arctic region (1)
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Canada
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Arctic Archipelago (2)
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Mackenzie Mountains (2)
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Western Canada
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British Columbia (1)
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Canadian Cordillera (1)
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Cenozoic
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Quaternary
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ecology (1)
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Europe
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Southern Europe
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Iberian Peninsula
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Spain
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Cantabrian Mountains (1)
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Western Europe
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France (1)
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Ireland
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Mayo Ireland (2)
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Scandinavia
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Sweden
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Gotland Sweden (1)
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United Kingdom
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Great Britain
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England
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Shropshire England (6)
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Staffordshire England (1)
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Welsh Borderland (1)
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Wales
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Monmouthshire Wales (1)
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-
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glacial geology (1)
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Graptolithina (9)
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ichnofossils (1)
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igneous rocks (1)
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Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Ostracoda
-
Podocopida (1)
-
-
-
-
Trilobitomorpha
-
Trilobita (2)
-
-
-
Brachiopoda
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Articulata
-
Orthida (3)
-
Pentamerida (1)
-
Rhynchonellida (1)
-
Strophomenida (2)
-
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Scleractinia (1)
-
-
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (4)
-
-
-
Mollusca (3)
-
Porifera
-
Stromatoporoidea (1)
-
-
Vermes
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Annelida (1)
-
-
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maps (1)
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micropaleontology (1)
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North America
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North American Cordillera
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Canadian Cordillera (1)
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Rocky Mountains (1)
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paleobotany (1)
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paleoecology (7)
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paleogeography (1)
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paleontology (14)
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Paleozoic
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Devonian
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Lower Devonian
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Gedinnian (1)
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-
-
lower Paleozoic
-
Cape Phillips Formation (2)
-
-
Road River Formation (1)
-
Silurian
-
Henryhouse Formation (1)
-
Lower Silurian (27)
-
Middle Silurian
-
Roberts Mountains Formation (1)
-
Waldron Shale (1)
-
-
Upper Silurian (12)
-
-
-
palynomorphs
-
acritarchs
-
Hystrichosphaeridae (1)
-
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Chitinozoa (2)
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Dinoflagellata
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Hystrichosphaeridae (1)
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miospores (1)
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reefs (2)
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sedimentary petrology (2)
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sedimentary rocks
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carbonate rocks
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limestone (1)
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clastic rocks
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black shale (1)
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red beds (1)
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sandstone (1)
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shale (1)
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sedimentary structures
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biogenic structures
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banks (1)
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bioherms (1)
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carbonate banks (1)
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sedimentation (2)
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sediments
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carbonate sediments (1)
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clastic sediments
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outwash (1)
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till (1)
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stratigraphy (10)
-
United States
-
Florida (1)
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Indiana (1)
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Oklahoma (1)
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Tennessee (1)
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Utah
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Box Elder County Utah (1)
-
-
-
-
sedimentary rocks
-
sedimentary rocks
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carbonate rocks
-
limestone (1)
-
-
clastic rocks
-
black shale (1)
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red beds (1)
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sandstone (1)
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shale (1)
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-
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turbidite (1)
-
-
sedimentary structures
-
sedimentary structures
-
biogenic structures
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banks (1)
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bioherms (1)
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carbonate banks (1)
-
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sediments
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sediments
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carbonate sediments (1)
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clastic sediments
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outwash (1)
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till (1)
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turbidite (1)
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Wenlockian
Llandoverian and Wenlockian brachiopods from the Canadian Cordillera
Community relations of Silurian crinoids at Dudley, England
Orientation of orthocones in the English Lake District based on field observations and experimental work in a flume
Three new camerates (Echinodermata; Crinoidea) from the Silurian of Oklahoma and Tennessee
Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago
Origin and Evolution of Bioherms in Wenlock Limestone (Silurian) of Shropshire, England
Silurian predator borings in the brachiopod Dicaelosia from the Canadian Arctic
Late Silurian brachiopods from northwestern Utah
Marsupiocrinidae of the Laurel Limestone of southeastern Indiana
Wenlock plant spores and tetrads from County Mayo, Ireland
Resserella sabrinae Bassett, in the Wenlock of Wales and the Welsh Borderland
Le Silurien en Tunisie; ses relations avec le Silurien de Libye nord-occidentale
Implications for the Fossil Record of Modern Carbonate Bank Corals
The boundary between the Wenlock and Ludlow Series [letter]
Silurian Brachiopoda, Upper Allen Bay Formation, Griffiths Island, Arctic Archipelago, and Uppermost Whittaker Formation, Mackenzie Mountains, Northwest Territories
Thlipsura martinssoni, a new ostracode species from the Silurian of England
This paper is a compilation of published information considered pertinent to the correlation of the 450 Silurian stratigraphic units now recognized in the British Isles. The number of units reflects both the geologic complexity of these islands and the fact that much careful description and geologic mapping was done during the past two centuries. The accompanying bibliography contains more than 800 titles. Graptolitic facies are widespread in the British Isles, and the graptolitic zonal sequence is used here to form the basis of correlation. In the shelf facies where graptolites are less common, brachiopod lineages are becoming increasingly useful in correlation. Recent work on other groups, particularly conodonts, spores, and ostracodes, provides further bases for correlation. In early Paleozoic time, Britain and Ireland were traversed by an ocean basin, called the Iapetus Ocean, which in Silurian time, however, provided no barrier to migration as most marine animals are common to both sides. The ocean-floor deposits are characterized by thin, pelagic shale sequences and thick graywacke turbidite sequences, all within the graptolitic facies. Shelf deposits occur along both margins of the ocean, in the Welsh Borderland and Wales on the southeast, and in Scotland and Ireland on the northwest. These shelf areas are characterized by clastic shelly facies with limestone locally developed. Nonmarine deposits are mainly associated with Late Silurian time, just prior to the late phases of the Caledonian orogeny, when all of the British Isles except southwest England became a mountainous, nonmarine area.