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Posted by / 13-Jul-2017 19:50

Cercopoidea organized online dating

Famous examples include the Eocene sites at Florissant, Colorado (Meyer 2003) and Messel, Germany (Schaal and Ziegler 1992), and the Cambrian Burgess Shale of British Columbia (Gould 1989). Also, there are several poorly pre served small insects, conifer needles, and other fossils not indicated here.

A series of Early Eocene sites collectively called the Okanagan Highlands also fits this description well.

1), in depositional basins where lacustrine shales and coal deposits fill grabens associated with uplift and regional volcanism (Ewing 1980). a green lacewing wing (Neuroptera: Chrysopidae); H. an undescribed family of scorpionfly (Mecoptera); L. The Early Eocene Okanagan High lands series of lacustrine shale and coal deposits, in far western North Ameri ca, constitutes a significant group of fossil sites with exceptional preserva tion of a diverse suite of organisms (Lagerstätten). With contemporaneous basins arrayed across about 1000 kilo metres of southern British Columbia and northern Washington, these sites offer a unique opportunity to examine the paleoecology of terrestrial commu nities spanning a temperate, low-sea sonality landscape in a montane setting during a time of generally warm tem peratures across the globe. The Okana gan Highlands sites provide an unpar alleled comparative framework within which to examine this major turning point in terrestrial community develop ment during the emergence of their broad modern character. La série de dépôts lacustres de schiste et de charbon du début de l’Éocène des hautes terres d’Okanagan, aux con fins de l’ouest de l’Amérique du Nord, constituent un groupe important de sites fossiles particulièrement bien con servés de suites d’organismes diverses (Lagerstätten).

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De nos jours, ces sites forment en une bande d’environ 1 000 kilomètres, depuis le sud de la Colom bie-Britannique jusqu’au nord de l’État de Washington.