Permian
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- Cretaceous Stem Chondrichthyans Survived the End-Permian Mass Extinction
- The Permian Timescale: an Introduction
- Permian Monsters: Life Before the Dinosaurs’
- The End-Permian Extinction Glenn Simonelli Indiana University
- Science Articles to Further Science Comment and Reply
- (Capitanian) Seawater 87Sr/86Sr Minimum Coincided with Disappearance of Tropical Biota and Reef Collapse in NE Ja
- Permian Reef Water Had a High Concentration of Minerals
- GEOLOGIC TIME SCALE V
- Carboniferous and Permian Algal Microflora, Tarim Basin (China)
- Discovery of a Tetrapod Body Fossil in the Lower Permian Yeso Group, Central New Mexico
- Anatomical and Ecological Constraints on Phanerozoic Animal Diversity in the Marine Realm
- Permophiles Issue
- Prolonged Permian–Triassic Ecological Crisis Recorded by Molluscan Dominance in Late Permian Offshore Assemblages
- Retallack 2013 Permian Triassic Greenhouse Crises
- Geologic Time Scale and Brief History of Life on Earth
- The Paleozoic and Mesozoic Rocks; a Discussion to Accompany the Geologic Map of the United States
- 2009 Geologic Time Scale Cenozoic Mesozoic Paleozoic Precambrian Magnetic Magnetic Bdy
- Two Pulses of Extinction During the Permian--Triassic Crisis