Greenlandian
In the geologic time scale, the Greenlandian is the earliest age or lowest stage of the Holocene Epoch or Series, part of the Quaternary. Beginning in 11,650 BP and ending with the 8.2-kiloyear event, it is the earliest of three sub-divisions of the Holocene. It was officially ratified by the International Commission on Stratigraphy in June 2018 with the later Northgrippian and Meghalayan Ages/Stages. The lower boundary of the Greenlandian Age is the GSSP sample from the North Greenland Ice Core Project in central Greenland. The Greenlandian GSSP has been correlated with the end of Younger Dryas and a "shift in lower deuterium excess values".
After the sudden rise in temperatures marking the end of the Late Pleistocene, global warming continued at a slightly more moderate pace during the Greenlandian. It was interrupted at the end of the period by the 8.2 kiloyear event, where the world experienced a relative drop in temperature. This isolated climate fluctuation was used to define the boundary between the Greenlandian and Northgrippian ages.
Global warming led to a rapid rise in sea levels, which engulfed vast regions that were once landforms and transformed portions of continents into islands. Affected areas include the British Isles, the Indonesian islands, and New Guinea and Tasmania, cut off from Europe, Southeast Asia, and Australia respectively. Additionally, the Beringian land bridge was submerged by these rising levels, forming the Bering Strait and separating Asia from the Americas.