Eifelian
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- Conodonts from a Potential Eifelian/Givetian Global Boundary Stratotype at Jbel Ou Driss, Southern Ma'der, Morocco
- The Eifelian-Givetian Boundary in the Oatka Creek Formation, Lower
- GEOLOGIC TIME SCALE V
- February 2021
- Gigantism, Taphonomy and Palaeoecology of Basiloceras, a New Oncocerid Genus from the Middle Devonian of the Tafilalt (Morocco)
- Geologic Time Scale” by J.G
- Diversity Dynamics of Silurian–Early Carboniferous Land Plants in South China
- Arc-To-Craton: Devonian Air-Fall Tephras in the Eastern United States
- Download Vitae
- Appendix 3. Age Table Data Dictionary
- The Paleozoic and Mesozoic Rocks; a Discussion to Accompany the Geologic Map of the United States
- New Perspectives and Advances in the Understanding of Lower and Middle Paleozoic Epeiric Carbonate Depositional Systems of the Iowa and Illinois Basins
- 2009 Geologic Time Scale Cenozoic Mesozoic Paleozoic Precambrian Magnetic Magnetic Bdy
- Systematics and Evolutionary Paleoecology of Crinoids from the St
- International Stratigraphic Chart
- SILURIAN-EARLY DEVONIAN SEQUENCE STRATIGRAPHY, EVENTS, and PALEOENVIRONMENTS of WESTERN NEW YORK and Ontarlo, CANADA
- Latest Early Devonian) Strata of the Shellabarger Pass Area (Farewell Terrane), Denali National Park & Preserve, South-Central Alaska
- Graphic Correlation of the Upper Eifelian to Lower Frasnian (Middle