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- Brenchley Et Al., 2001)
- GEOLOGIC TIME SCALE V
- February 2021
- A Low Diversity Sinuites Gastropod Community from the Floian, Early Ordovician, of South Wales
- The Lower Ordovician (Upper Floian) Bathyurid Trilobite Aponileus Hu, with Species from Utah, Texas, and Greenland
- Geologic Time Scale” by J.G
- The Late Ordovician
- Greenhouse−Icehouse Transition in the Late Ordovician Marks a Step Change in Extinction Regime in the Marine Plankton
- The Cambrian–Ordovician Succession at Lanna, Sweden: Stratigraphy and Depositional Environments
- Brief Report Acta Palaeontologica Polonica 53 (4): 745–749, 2008
- Appendix 3. Age Table Data Dictionary
- 2009 Geologic Time Scale Cenozoic Mesozoic Paleozoic Precambrian Magnetic Magnetic Bdy
- International Stratigraphic Chart
- EGU2018-12551, 2018 EGU General Assembly 2018 © Author(S) 2018
- Onset of Main Phanerozoic Marine Radiation Sparked by Emerging Mid Ordovician Icehouse Received: 28 September 2015 Christian M
- A New Species of the Gondwanan Genus Cardiolaria Munier-Chalmas in The
- Cambrian Stratigraphy of Jordan
- The Oldest Iocrinid Crinoids from the Early/Middle Ordovician of China
- Onset of Main Phanerozoic Marine Radiation Sparked by Emerging Mid Ordovician Icehouse
- An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
- Climate Change Research
- Darriwilian Shallow-Marine Deposits from the Sultanate of Oman, a Poorly Known Portion of the Arabian Margin of Gondwana
- Sedimentary Facies and Trilobite and Conodont Faunas of the Ordovician Rann Formation, Ras Al Khaimah, United Arab Emirates
- From the Early Ordovician of the Montagne Noire, France Jan Ebbestad, Bertrand Lefebvre, Jean-Paul Kundura, Marie-Hélène Kundura
- Ordovician Plankton Revolution’ in the Late Cambrian
- The Ordovician Exposed
- The Fezouata Fossils of Morocco; an Extraordinary Record of Marine Life in the Early Ordovicianpeter Van Roy, Derek E
- The Geological Society of America Geologic Time Scale 1888 2013
- Hierarchical List
- New Insights from Cambrian and Ordovician Strata of Laurentia
- The Upper Tremadocian (Lower Ordovician) Graptolite Ancoragraptus from Yiyang, South China
- Cascading Trend of Early Paleozoic Marine Radiations Paused by Late Ordovician Extinctions
- The New Chronostratigraphic Classification of the Ordovician
- Unusual Preservation of an Ordovician (Floian) Arthropod from Peary Land, North Greenland (Laurentia)