Bramertonian interglacial
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The Bramertonian interglacial is the name for an early Pleistocene glacial stage used in the British Isles. It preceded the Pre-Pastonian glaciation and followed the Baventian stage at the end of the Pliocene era. It derives its name from Bramerton Pits in Norfolk, where the deposits can be found on the surface.
It appears to have been a temperate phase and occurred between around 1.3 Ma and 1.55 Ma (million years ago). The climate was temperate with evidence for mixed oak forest in southern England and the arrival of hemlock. Evidence from East Anglia suggests sea levels were higher then than they are today.