![]() ![]() Fossils of the metasequoia were first described in 1941. 21.105), the dawn redwood, is a member of this subfamily and is often described as a living fossil. ![]() The research is also supported by the Senckenberg Nature Museum in Germany. In 2005 the Oregon state legislature adopted the fossils of the dawn redwood or Metasequoia as the Oregon state fossil. These fossil beds represent an ancient lake and the fossils were preserved in a fine layer of silt that build up over the years as diatoms in the lake bloomed and died. Study of its fossils will enable researchers to understand how conifer plants distribute spatially and respond to climate changeĪs the first Metasequoia fossil in southwest China and the southernmost fossil of the genus around the world, the newfound fossils considerably expands the spatial distribution range of Metasequoia in the geological past.Īccording to the research published in Review of Palaeobotany and Palynology, the disappearance of Metasequoia in southwest China might be related to the evolutionary stasis of Metasequoia, most likely preventing necessary adaptations to increasing winter and spring aridity induced by the intensification of the Asian monsoon in this region during the Neogene. Here is a fossil of a 52 million year old redwood of the species Metasequoia occidentalis from the McAbee Fossil Beds in Cache Creek BC. The Metasequoia is an ancient plant with a narrow natural distribution in central China. Numerous well-preserved leafy shoots and seed cones of Metasequoia have been brought to light after a deep sleep of between about 16-11 million years ago at the middle Miocene deposits in Sanzhangtian village, southwest China's Yunnan Province, by researchers from Xishuangbanna Tropical Botanical Garden. ![]() BEIJING, April 6 (Xinhua) - Chinese researchers have discovered a Metasequoia fossil in southwest China, the furthest south such a fossil that has ever been discovered, revealing a possible cause for the Metasequoia's disappearance in the region. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |