Givetian
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- 1983 Geologic Time Scale
- Conodonts from a Potential Eifelian/Givetian Global Boundary Stratotype at Jbel Ou Driss, Southern Ma'der, Morocco
- Michigan State It University
- Middle/Upper Devonian Brachiopod Shell Concentrations from the Intra-Shelf Basinal Carbonates of the Holy Cross Mountains (Central Poland)
- The Eifelian-Givetian Boundary in the Oatka Creek Formation, Lower
- Crinoid Assemblages in the Polish Givetian and Frasnian
- Kerman Region, Central Iran) Fatane Zamani, Mehdi Yazdi, Ali Bahrami, Catherine Girard, Claudia Spalletta, Hamed Ameri
- Brachiopoda)In Central and Western North America
- A Framework for the Integrated Analysis of the Magnitude, Selectivity, and Biotic Effects of Extinction and Origination
- GEOLOGIC TIME SCALE V
- The Early Devonian (Emsian) Acrotretid Microbrachiopod Opsiconidion Minor Popov, 1981, from the Alaska/Yukon Territory Border and Novaya Zemlya
- Persistent Predator–Prey Dynamics Revealed by Mass Extinction
- 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
- Synchronized Moulting Behaviour in Trilobites from the Cambrian Series 2 of South China
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