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A myth has developed that prior to European culture the New World was a pristine wilderness. In fact, the vegetation conditions that the European settlers observed were changing rapidly because of aboriginal depopulation. As a result, canopy closure and forest tree density were increasing throughout the region. [6]
This is a list of the oldest-known trees, as reported in reliable sources. Definitions of what constitutes an individual tree vary. Definitions of what constitutes an individual tree vary. In addition, tree ages are derived from a variety of sources, including documented "tree-ring" ( dendrochronological ) count core samples, and from estimates.
Mesozoic trees (10 P) Pages in category "Prehistoric trees" The following 23 pages are in this category, out of 23 total. This list may not reflect recent changes. B.
Lepidodendron species were comparable in size to modern trees. The plants had tapering trunks as wide as 2 m (6.6 ft) at their base that rose to about 40 m (130 ft) [ 2 ] and even 50 m (160 ft), [ 1 ] arising from an underground system of horizontally spreading branches that were covered with many rootlets.
The Early Woodland period continued many trends begun during the Late and Terminal Archaic periods, including extensive mound-building, regional distinctive burial complexes, the trade of exotic goods across a large area of North America as part of interaction spheres, the reliance on both wild and domesticated plant foods, and a mobile subsistence strategy in which small groups took advantage ...
Megatherium americanum is thought to have been a browser that fed on the foliage and twigs of trees and shrubs using a black rhinoceros-like prehensile upper lip. Despite its large body size, Megatherium americanum is widely thought to have been able to adopt a bipedal posture at least while standing, which allowed it to feed on high-growing ...
It was the largest city in North America in the 12th century. [19] 1150–1350: Ancestral Pueblo people are in their Pueblo III Period; 1200: Construction begins on the Grand Village of the Natchez near Natchez, Mississippi. This ceremonial center for the Natchez people is occupied and built upon until the early 17th century. [20]
Northwestern North America. A tree felled in North Vancouver, British Columbia in 1902 had bark 34 cm (13 + 1 ⁄ 2 in) in thickness. [134] Cork Oak (Quercus suber) circum-Mediterranean distribution. One Cork Oak at the chapel of São Gonçalo 16 km (10 mi) south of Lisbon, Portugal had cork measuring 20 cm (8 in) deep. [135]