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NARROW
Format
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GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Zambia (1)
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North Africa
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Algeria (1)
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Atlas Mountains
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Moroccan Atlas Mountains
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Anti-Atlas (1)
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Egypt (1)
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Libya
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Cyrenaica (1)
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Morocco
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Moroccan Atlas Mountains
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Anti-Atlas (1)
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Rabat Morocco (1)
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Tunisia (2)
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Southern Africa
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South Africa
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Cape Province region (1)
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Antarctica
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Antarctic Peninsula (1)
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James Ross Island (1)
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West Antarctica (1)
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Arctic Ocean
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Arctic region
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Svalbard
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Spitsbergen (2)
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Asia
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Arabian Peninsula
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Saudi Arabia (2)
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Central Asia
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Kazakhstan
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Aktyubinsk Kazakhstan (1)
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Far East
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China
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Korea
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Himalayas (1)
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Indian Peninsula
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India
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Jammu and Kashmir
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Middle East
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Atlantic Ocean
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South Atlantic
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Canada
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Maritime Provinces
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Newfoundland and Labrador
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Newfoundland
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Port au Port Peninsula (1)
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Ontario
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Nunavut
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Queen Elizabeth Islands
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Western Canada
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Caribbean region
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Antilles
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Lesser Antilles
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Trinidad and Tobago
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Central America
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Indian Ocean
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North America
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Basin and Range Province
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Pacific Ocean
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North Pacific
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Northeast Pacific
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South Pacific
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West Pacific
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Pacific region
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California
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Iowa
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Kansas
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Louisiana (2)
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Maryland
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Massachusetts
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Michigan
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Michigan Lower Peninsula
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Midcontinent (2)
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Missouri
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Montana (2)
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New Mexico (2)
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New York
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Monroe County New York (1)
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Ohio
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Hamilton County Ohio
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Cincinnati Ohio (1)
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Oklahoma
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commodities
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petroleum
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elements, isotopes
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carbon
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C-13/C-12 (5)
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C-14 (3)
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organic carbon (1)
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isotope ratios (7)
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isotopes
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radioactive isotopes
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C-14 (3)
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stable isotopes
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C-13/C-12 (5)
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O-18/O-16 (3)
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Sr-87/Sr-86 (1)
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metals
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alkaline earth metals
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strontium
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Sr-87/Sr-86 (1)
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platinum group
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iridium (1)
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nitrogen (1)
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oxygen
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O-18/O-16 (3)
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sulfur (1)
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fossils
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Perissodactyla
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Hippomorpha
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Equidae
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Reptilia
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Diapsida
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Archosauria
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dinosaurs
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Saurischia
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Sauropoda (1)
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Theropoda (1)
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Thecodontia
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Aetosauria (1)
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Synapsida
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Therapsida
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Dicynodontia (2)
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Cloudina (2)
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fungi (1)
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Graptolithina
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Graptoloidea (2)
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ichnofossils
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Skolithos (1)
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Invertebrata
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Arthropoda
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Mandibulata
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Malacostraca
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Brachyura (1)
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Ostracoda
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Podocopida
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Bairdiomorpha
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Cytherocopina
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Cytheracea
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Loxoconcha (1)
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Insecta
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Pterygota
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Neoptera
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Endopterygota
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Coleoptera (1)
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Trilobitomorpha
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Trilobita (5)
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Brachiopoda
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Articulata
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Spiriferida (1)
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Bryozoa (2)
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Cnidaria
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Scleractinia
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Echinodermata
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Crinozoa
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Mollusca
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Cephalopoda
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Protista
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Rotaliina
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Orbitoidacea
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Lepidocyclina (4)
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Rotaliacea
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Heterostegina
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Heterostegina depressa (1)
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Miogypsinidae
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Nummulitidae
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Operculina (1)
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Textulariina
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Lituolidae
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Radiolaria (4)
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Vermes
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scolecodonts (1)
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Conodonta
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Fusulinina
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scolecodonts (1)
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palynomorphs
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Plantae
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algae
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calcareous algae (1)
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Chlorophyta
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Coccolithophoraceae
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diatoms (3)
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Rhodophyta
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Corallinaceae
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Lithothamnium (1)
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Spermatophyta
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problematic fossils (4)
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thallophytes (7)
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geochronology methods
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Stone Age
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Tertiary
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middle Tertiary (1)
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Calvert Formation (1)
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Pliocene
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lower Pliocene (2)
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upper Pliocene (2)
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Paleogene
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lower Eocene
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Thebes Formation (1)
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middle Eocene
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Cook Mountain Formation (2)
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Lisbon Formation (1)
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upper Eocene
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Moodys Branch Formation (1)
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lower Paleogene (1)
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Oligocene
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upper Oligocene (2)
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Paleocene
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upper Paleocene
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Thanetian (2)
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-
-
-
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Dalradian (1)
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Lower Cretaceous
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Albian (2)
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Upper Cretaceous
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Morrison Formation (1)
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Permian-Triassic boundary (3)
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Montney Formation (1)
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Ischigualasto Formation (1)
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Paleozoic
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Upper Mississippian
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Fayetteville Formation (2)
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Upper Carboniferous
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Cow Head Group (2)
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Upper Ordovician
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Maquoketa Formation (1)
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Permian
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Lower Permian
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Sakmarian (2)
-
-
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Middle Permian (1)
-
Upper Permian
-
Lopingian
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Changhsingian (1)
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Wuchiapingian (1)
-
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Permian-Triassic boundary (3)
-
-
-
Read Bay Formation (1)
-
Silurian
-
Lower Silurian
-
Llandovery
-
Telychian (1)
-
-
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
index fossils
A deep-sea foraminiferal assemblage scattered through the late Cenozoic of Antarctic Peninsula and its biostratigraphic and biogeographic implications Available to Purchase
Fossil illustrations from the work of William Smith Available to Purchase
ABSTRACT William Smith’s Strata Identified by Organized Fossils , published between 1816 and 1819, was one of the most important books in the development of stratigraphy; it was also significant in the evolution of paleontological art and illustration. For the first time, Smith organized fossil illustrations in plates according to the order of the strata. Each stratigraphic plate showed characteristic assemblages of fossils. The publication was a joint venture between Smith and James Sowerby and it was Sowerby who elevated the work into the realm of art. Smith had been influenced by the work of previous authors, in particular Robert Plot and John Morton, who, some 150 years earlier, had published texts illustrated by fossil engravings. The difference between these engravings and those of Sowerby shows the extent to which fossil illustration had evolved. Unlike previous work where the engravings were very mechanical, Sowerby’s were extraordinarily naturalistic. By means of subtle lines, stipple, and water coloring, Sowerby was able to achieve extremely realistic and aesthetically pleasing artwork. Unusually, many of Smith’s originals fossils are still intact and when photographs of these specimens are compared to the illustrations, the quality of Sowerby’s work is striking. Smith also selected earth-colors for the paper on which the illustrations were produced, with colors reflecting the strata in which the fossils were embedded. Although this technique had some disadvantages, it aimed to bridge the gap between science and art.
Distribution and correlation of Sabellidites cambriensis (Annelida?) in the basal Cambrian on Baltica Open Access
Geology and palaeontology of the Codos anticline, eastern Iberian Chains, NE Spain: age constraints for the Ediacaran–Cambrian boundary in the Iberian Chains Open Access
Impagidinium obscurum sp. nov., a marker dinoflagellate cyst for the Thanetian (Paleocene) of the North Sea and the Barents Sea Available to Purchase
An Early Cretaceous stratigraphic marker fossil in the High Arctic: the belemnite Arctoteuthis bluethgeni Available to Purchase
Conodont sequence biostratigraphy of the Lower Triassic Montney Formation Available to Purchase
Abstract: A brief historical review of ammonoid-based Permian biostratigraphy is performed. Changes in ammonoid associations are shown for each of nine Permian stages. The major correlation problems were discussed. A renewed ammonoid zonal scale is proposed.
Late Pennsylvanian–Early Triassic conchostracan biostratigraphy: a preliminary approach Available to Purchase
Abstract: Conchostracans are one of the most common fossil animal groups of continental deposits from late Palaeozoic to modern times. Their habitats have ranged from perennial lakes of the Carboniferous and Early Permian to seasonal playa lakes and temporary ponds from the late Early Permian into the Triassic, where they could form mass occurrences. This, together with relatively high speciation rates, makes them ideal guide fossils, especially in otherwise fossil-poor wet and dry red beds. Based on material and data collected since the 1980s from both surface outcrops and well cores in central Europe, a preliminary conchostracan zonation is proposed. We used a conservative approach, erecting assemblage zones comprising two or three species instead of species-range zones with only one or, sometimes, two forms. Assemblage zones are more robust and provide more reliability for each delineated time interval. Isotopically dated occurrences of conchostracan zone species, or co-occurrences of conchostracans, insect zone species and marine index fossils such as conodonts and fusulinids, allow us to correlate our assemblage zones with the marine Standard Global Chronostratigraphic Scale.
Permian tetrapod biochronology, correlation and evolutionary events Available to Purchase
Abstract: The most extensive Permian tetrapod (amphibian and reptile) fossil records from the western USA (New Mexico to Texas) and South Africa have been used to define 11 land vertebrate faunachrons (LVFs). These are, in ascending order, the Coyotean, Seymouran, Mitchellcreekian, Redtankian, Littlecrotonian, Kapteinskraalian, Gamkan, Hoedemakeran, Steilkransian, Platbergian and Lootsbergian. These faunachrons provide a biochronological framework with which to assign ages to, and correlate, Permian tetrapod fossil assemblages. Intercalated marine strata, radioisotopic ages and magnetostratigraphy were used to correlate the Permian LVFs to the standard global chronostratigraphic scale with varying degrees of precision. Such correlations identified the following significant events in Permian tetrapod evolution: a Coyotean chronofaunal event (end Coyotean); Redtankian events (Mitchellcreekian–Littlecrotonian); Olson’s gap (late Littlecrotonian); a therapsid event (Kapteinskraalian); a dinocephalian extinction event (end Gamkan); and a latest Permian extinction event (Platbergian–Lootsbergian boundary). Problems of incompleteness, endemism and taxonomy, and the relative lack of non-biochronological age control continue to hinder the refinement and correlation of a Permian timescale based on tetrapod biochronology. Nevertheless, the global Permian timescale based on tetrapod biochronology is a robust tool for both global and regional age assignment and correlation. Advances in Permian tetrapod biochronology will come from new fossil discoveries, more detailed biostratigraphy and additional alpha taxonomic studies based on sound evolutionary taxonomic principles.
Gavelinella Breardi , A New Name For the Turonian Gulf Coast Marker Species Anomalina “w” Available to Purchase
RE-EXAMINATION OF THE USE OF CASSIDULINA NEOTERETIS AS A PLEISTOCENE BIOSTRATIGRAPHIC MARKER IN THE ARCTIC OCEAN Available to Purchase
Late Quaternary beach deposits and archaeological relicts on the coasts of Cyprus, and the possible implications of sea-level changes and tectonics on the early populations Available to Purchase
Abstract Late Pleistocene beach deposits in 22 selected sites around Cyprus demonstrate the vertical changes in the Earth’s crust in that island over the last 125 ka. The beach/shallow-marine deposits were observed on the abraded coastal cliffs at 3–22 m above the present sea-level. They overlie Pliocene marls, and some of them contain the Senegalese marine gastropods Persististrombus latus , Bursa granularis and Conus ermineus that no longer live in the Mediterranean. These are index fossils for the Marine Isotope Stage (MIS) 5e in the Mediterranean and, as such, suggest an uplift of up to 15.5 m over about the last 125 ka: that is a maximal rate of 0.12 mm a −1 . These findings are in accordance with Holocene beachrocks, abrasion platforms, wave notches and Roman/Byzantine fish tanks that retained their elevations, and thus enable the reconstruction of the coast encountered by the early colonizers. While the maximal uplift since the early Holocene has been minor and did not exceed 1.2–1.5 m, the sea-level changes have reached 40–50 m. The transition between the impermeable Pliocene marls and the porous Late Pleistocene deposits above them is the origin of freshwater springs and associated vegetation. The early colonizers seemed to recognize the potential of that essential permanent source of water and excavated wells, the earliest wells known so far. The locations of the Early Neolithic settlements (Mylouthkia and Akanthou) adjacent to visible water springs along the coastal cliffs may not be incidental. Not surprisingly, recent wells dug in the coastal Pleistocene deposits rely on the very same hydrological setting. Supplementary material: Appendices 1–4, which include tables and diagrams showing the vertical changes (m) and rates of vertical changes (mm ka −1 ), assuming that MIS5e isotope stage deposits are 122 ka old and are at elevation of 7.2 m asl, or 116 ka at 6.5 m, are available at http://www.geolsoc.org.uk/SUP18830 .