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The range is older than the other major mountain range in North America, the Rocky Mountains of the west. Some of the outcrops in the Appalachians contain rocks formed during the Precambrian era. The geologic processes that led to the formation of the Appalachian Mountains started 1.1 billion years ago.
In terms of biodiversity, the only comparable temperate deciduous forest regions in the world are in central China, Japan, and in the Caucasus Mountains.Both the Appalachians (along with the neighbouring Appalachian mixed mesophytic forests ecoregion) and central China contain relict habitats of an ancient forest that was once widespread over the Northern Hemisphere.
The US uses the term Appalachian Highlands, and Canada uses the term Appalachian Uplands, to define contiguous regions that have similar geology, topography, history, and native plant and animal communities. (The Appalachian Mountains are not synonymous with the Appalachian Plateau, which is one of the provinces of the Appalachian Highlands).
Thus relatively little is known about Appalachia in comparison to Laramidia, with the exception of plant life, marine life and the insects trapped in amber from New Jersey. In addition, due to a lack of interest in Appalachia, many fossils that have been found in Appalachia lie unstudied and remain in the inaccurate genera to which they were ...
The Appalachian region is home to a wide variety of plant and animal life due to its vast array of climate and conditions giving the Appalachian Plateau region great biodiversity. To the north are many conifers, such as red spruce and balsam fir which can be seen growing at the northernmost latitudes of the Appalachian region.
Two walnut trees, taller than 100 feet, fell a few dozen feet from Godfrey’s home. Another tree crunched a neighbor’s car. Communication systems have also fared worse than Godfrey expected.
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Appalachia's emergence in academia is a result of the intersection between social conditions and critical academic interests, and has resulted in the development of many Appalachian studies programs in colleges and universities across the region, as well as in the Appalachian Studies Association.