Search results
Results from the WOW.Com Content Network
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]
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 ...
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.
They divided the archaeological record in the Americas into five phases, only three of which applied to North America. [1] The use of these divisions has diminished in most of North America due to the development of local classifications with more elaborate breakdowns of times. [2] 1. The Paleo-Indians stage and/or Lithic stage 2. The Archaic ...
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.
Areas of Cenozoic North America that were covered by seawater tended to be areas near the modern coasts. [135] The Cannonball Sea near Minot, North Dakota was the last of the North American interior. [136] Cenozoic marine invertebrates are best known from deposits near the coasts and tend to resemble modern forms.
[4] [5] Prehistoric groups in this area are characterized by agricultural villages and large ceremonial and politico-religious capitals [6] This culture area included some of the most complex and advanced cultures of the Americas, including the Olmec, Teotihuacan, the Maya, and the Aztec, the most powerful tribe of Mesoamerica in their time.
900: American Southwestern tribes trade with Indigenous peoples of Mexico to obtain copper bells cast through the lost-wax technique. 915 (exact date): Construction begins at Pueblo Bonito, the largest Ancestral Pueblo Great House. 1000: Discovery of Vinland by Leif Erikson and Norse colonization of North America.