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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 (1)
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Southern Africa
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South Africa
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Western Cape Province South Africa (1)
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Alexander Terrane (2)
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Arctic region
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Russian Arctic
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New Siberian Islands (1)
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Asia
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Krasnoyarsk Russian Federation
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Taymyr Dolgan-Nenets Russian Federation
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Middle East
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Yakutia Russian Federation
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Australasia
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Australia
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Canada
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Commonwealth of Independent States
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Russian Federation
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Taymyr Peninsula (1)
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Russian Arctic
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Yakutia Russian Federation
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Uzbekistan
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Europe
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Southern Europe
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United States
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commodities
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construction materials
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building stone (1)
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elements, isotopes
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carbon
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C-13/C-12 (3)
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isotope ratios (3)
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isotopes
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C-13/C-12 (3)
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O-18/O-16 (1)
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S-34/S-32 (1)
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oxygen
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sulfur
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fossils
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Graptolithina
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Invertebrata
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Myodocopida
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Trilobitomorpha
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Brachiopoda
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Articulata
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metamorphic rocks
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metamorphic rocks
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marbles (1)
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minerals
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sulfides
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pyrite (1)
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Primary terms
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Africa
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North Africa (1)
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Southern Africa
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South Africa
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Western Cape Province South Africa (1)
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Arctic region
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Russian Arctic
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New Siberian Islands (1)
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Asia
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Krasnoyarsk Russian Federation
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Taymyr Dolgan-Nenets Russian Federation
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Middle East
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Turkey (1)
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Uzbekistan
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Nura-Tau (1)
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Yakutia Russian Federation
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Australasia
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Australia
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Queensland Australia
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Broken River Province (1)
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biogeography (6)
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Canada
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Arctic Archipelago (1)
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Eastern Canada
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Ontario (1)
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Hudson Bay Lowlands (1)
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Mackenzie Mountains (2)
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Nunavut (2)
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Queen Elizabeth Islands
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Western Canada
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carbon
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C-13/C-12 (3)
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climate change (1)
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continental drift (1)
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Europe
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Barrandian Basin (1)
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Bohemia
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Southern Europe
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Iberian Peninsula
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Ossa-Morena Zone (1)
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Western Europe
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Belgium (1)
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Scandinavia
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Denmark
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Bornholm (1)
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United Kingdom
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Great Britain
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England
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Howgill Fells (2)
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Welsh Borderland (1)
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Scotland
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Scottish Highlands (1)
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Wales (1)
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geochemistry (1)
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Graptolithina
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Dendroidea (1)
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Graptoloidea (2)
-
-
Hemichordata (2)
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Malacostraca (1)
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Ostracoda
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Beyrichicopina (1)
-
Myodocopida
-
Entomozocopina (1)
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Myodocopina (1)
-
-
-
-
-
Trilobitomorpha
-
Trilobita
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Lichida (3)
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Phacopida (2)
-
-
-
-
Brachiopoda
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Articulata
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Pentamerida (1)
-
Rhynchonellida (1)
-
-
Inarticulata (1)
-
-
Mollusca
-
Gastropoda (3)
-
-
-
isotopes
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stable isotopes
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C-13/C-12 (3)
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O-18/O-16 (1)
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S-34/S-32 (1)
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Mesozoic
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Cretaceous
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Upper Cretaceous
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Cenomanian (1)
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metamorphic rocks
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marbles (1)
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oxygen
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O-18/O-16 (1)
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Paleozoic
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Devonian
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Lower Devonian (1)
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Middle Devonian
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Givetian (1)
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lower Paleozoic
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Cape Phillips Formation (1)
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Ordovician
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Lower Ordovician
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Tremadocian (1)
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Middle Ordovician
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Darriwilian (1)
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Upper Ordovician
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Ashgillian (1)
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Hirnantian (1)
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Silurian
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Lower Silurian
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Llandovery
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Telychian (1)
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Wenlock (3)
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Middle Silurian (1)
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Upper Silurian
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Ludlow
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Pridoli (2)
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problematic fossils (1)
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shale (1)
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sedimentation (1)
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stratigraphy (1)
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sulfur
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S-34/S-32 (1)
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United States
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weathering (1)
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sedimentary rocks
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sedimentary rocks
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clastic rocks
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shale (1)
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Kopanina Formation
Metacalymene Kegel, 1927, a calymenid trilobite from the Kopanina Formation (Silurian) of Bohemia
( a ) Field photograph of massively to thinly bedded mudstones, wackestones...
PROBLEMATIC PHOSPHATIC PLATES FROM THE SILURIAN–EARLY DEVONIAN OF BOHEMIA, CZECH REPUBLIC
Rijckholtia , A New Name for the Genus Ryckholtia Šnajdr, 1980 (Arthropoda, Trilobita), Preoccupied By Ryckholtia Fritsch, 1910 (Mollusca, Gastropoda)
Wenlock–Ludlow boundary interval revisited: new insights from the offshore facies of the Prague Synform, Czech Republic
Constraining reducing conditions in the Prague Basin during the late Silurian Lau/Kozlowskii extinction event
Cosmopolitan myodocope ostracods from the Silurian of Uzbekistan, Central Asia
REEF-DWELLING GYPIDULOID BRACHIOPODS IN THE LOWER SILURIAN ATTAWAPISKAT FORMATION, HUDSON BAY REGION
Evidence for Segment Polarity During Regeneration in the Devonian Asteropygine Trilobite Greenops widderensis
Chemical processing of fossil phyllocarid cuticle: a comparison of micro- and macrofossil remains
A pelagic myodocopid ostracod from the Silurian of Arctic Russia
BRACHIOPODA FROM THE SOOM SHALE LAGERSTÄTTE (UPPER ORDOVICIAN, SOUTH AFRICA)
THE SILURIAN-DEVONIAN BOUNDARY IN THE BARRANDIAN
Silurian Gastropoda from Southeastern and West-Central Alaska
Gastropods are described from Ludlow-age strata of the Heceta Limestone on Prince of Wales Island, southeast Alaska. They are part of a diverse megabenthic fauna of the Alexander terrane, an accreted terrane of Siberian or Uralian affinities. Heceta Limestone gastropods with Uralian affinities include Kirkospira glacialis , which closely resembles “ Pleurotomaria ” lindströmi Oehlert of Chernyshev, 1893 , Retispira cf. R. volgulica ( Chernyshev, 1893 ), and Medfracaulus turriformis ( Chernyshev, 1893 ). Medfracaulus and similar morphotypes such as Coelocaulus karlae are unknown from rocks that are unquestionably part of the North American continent (Laurentia) during Late Silurian time. Beraunia is previously known only from the Silurian of Bohemia. Pachystrophia has previously been reported only from western North American terranes (Eastern Klamath, York, and Farewell terranes) and Europe. Bathmopterus Kirk, 1928 , is resurrected and is only known from the Silurian of southeast Alaska. Newly described taxa include Hecetastoma gehrelsi n. gen. and n. sp. and Baichtalia tongassensis n. gen. and n. sp.