Ancient, extensive nearly flat surfaces worn down by long erosion, including peneplains, exhumed sub-Cambrian and sub-Paleogene surfaces and flat plains dotted with residual hills. A landform belongs here when its cited article calls it a peneplain, an erosion surface or a flat landscape type produced by erosion. It excludes mesas and buttes, which are isolated remnants, and basins. These surfaces are studied to reconstruct uplift and erosion history across whole regions, often over hundreds of millions of years.
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Peneplains and Erosion Surfaces
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Sub-Cambrian peneplain (Wikipedia)
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The sub-Cambrian peneplain is an ancient, extremely flat, erosion surface (peneplain) that has been exhumed and exposed by erosion from under Cambrian strata over large swathes of Fennoscandia.
Paleic surface (Wikipedia)
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The paleic surface or palaeic surface (Norwegian: paleiske overflaten, from Ancient Greek palaios 'old') is an erosion surface of gentle slopes that exist in South Norway.
Sub-Paleogene surface (Wikipedia)
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The Sub-Paleogene surface is an ancient erosion surface that exists in southern England.
Schooley peneplain (Wikipedia)
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The Schooley peneplain is a peneplain in the eastern Appalachians extending from the US state of New Jersey into Pine Mountain in Kentucky.
Muddus plains (Wikipedia)
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The Muddus plains is a landscape type in northern Sweden characterized by its flat topography dotted with inselbergs.
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