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The Permian–Triassic extinction event, labeled "End P" here, is the most significant extinction event in this plot for marine genera which produce large numbers of fossils. The Permian ended with the most extensive extinction event recorded in paleontology: the Permian–Triassic extinction event. 90 to 95% of marine species became extinct ...
Dicynodontia is an extinct clade of anomodonts, an extinct type of non-mammalian therapsid. Dicynodonts were herbivores that typically bore a pair of tusks, hence their name, which means 'two dog tooth'. Members of the group possessed a horny, typically toothless beak, unique amongst all synapsids. Dicynodonts first appeared in Southern Pangaea ...
Walchia is a primitive fossil conifer found in upper Pennsylvanian (Carboniferous) and lower Permian (about 310-290 Mya) rocks of Europe and North America. A forest of in-situ Walchia tree-stumps is located on the Northumberland Strait coast at Brule, Nova Scotia. Besides the Walchia forest, fallen tree trunks, and leaflet impressions, the ...
Dimetrodon (/ daɪˈmiːtrəˌdɒn / ⓘ [ 1 ] or / daɪˈmɛtrəˌdɒn /; [ 2 ]lit.'two measures of teeth') is an extinct genus of non- mammalian synapsid belonging to the family Sphenacodontidae that lived during the Cisuralian age of the Early Permian period, around 295–272 million years ago. [ 3 ][ 4 ][ 5 ] With most species measuring 1.7 ...
300 feet (91 m)-500 feet (150 m) in Grand Canyon region. The Kaibab Limestone is a resistant cliff-forming, Permian geologic formation that crops out across the U.S. states of northern Arizona, southern Utah, east central Nevada and southeast California. It is also known as the Kaibab Formation in Arizona, Nevada, and Utah.
I. vladimiriVyushkov, 1953. Inostrancevia is an extinct genus of large carnivorous therapsids which lived during the Late Permian in what are now Siberia, Russia and Southern Africa. The first-known fossils of this gorgonopsian were discovered in the Northern Dvina, where two almost complete skeletons were exhumed.
Claiborne Group / Stone City Formation. Paleogene. Claiborne Group / Weches Formation. Paleogene. Clarendon Beds. Neogene. Clear Fork Formation. Permian. Clear Fork Group / Arroyo Formation.
Viatkogorgon. Viatkogorgon is a genus of gorgonopsian (a type of therapsid, the group that includes modern mammals) that lived during the Permian period in what is now Russia. The first fossil was found at the Kotelnich locality near the Vyatka River and was made the holotype of the new genus and species V. ivachnenkoi in 1999.
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