the Asselian

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• Asselian Stage — ▪ geology       first of the four stages of the Lower Permian (Cisuralian) Series, encompassing all rocks deposited during the Asselian Age (299 million to 294.6 million years ago) of the Permian Period. The Asselian Stage is especially well… …   Universalium

• Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies …   Wikipedia

• Gzhelian — The Gzhelian Age is the last of four ages in the Pennsylvanian Epoch of the Carboniferous period. It lasted from approximately 303.9±0.9 to 299.0±0.8 million years ago. It was preceded by the Kasimovian age and followed by the Asselian age of the …   Wikipedia

• Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… …   Universalium

• Protorothyris — Temporal range: Asselian, 299–294.6 Ma …   Wikipedia

• Medullosales — Temporal range: Carboniferous–Permian …   Wikipedia

• Gzhelian Stage — ▪ geology Gzhelian also spelled  Gzelian        last of four internationally defined stages of the Pennsylvanian Subsystem (Pennsylvanian Subperiod), Carboniferous System (Carboniferous Period), encompassing all rocks deposited during the… …   Universalium

• Archegosaurus — Temporal range: Early Permian Archegosaurus Scientific classification …   Wikipedia

• Sakmarian Stage — ▪ geochronology       second of the four stages of the Early Permian (Cisuralian) Epoch, encompassing all rocks deposited during the Sakmarian Age (294.6 million to 284.4 million years ago) of the Permian Period. Rocks deposited during the… …   Universalium

• Older Dryas — The Older Dryas was a stadial period between the Bølling and Allerød oscillations during the Pleistocene glacial period of 11,700 12,000 uncalibrated years ago.[1] It is named after an indicator genus, the alpine/tundra plant Dryas, which… …   Wikipedia

• Allerød oscillation — The Allerød period was a warm and moist global interstadial that occurred at the end of the last glacial period. The Allerød oscillation raised temperatures (in the northern Atlantic region to almost present day levels), before they declined… …   Wikipedia