In recent years,two species of fossil plants,i.e.Ctenozamites sarrani Zeiller and Equisetites arenaceus(Jaeger)Bronn,have been found for the first time in the Xiaowa Formation in Guanling County,Guizhou.They occur tog...In recent years,two species of fossil plants,i.e.Ctenozamites sarrani Zeiller and Equisetites arenaceus(Jaeger)Bronn,have been found for the first time in the Xiaowa Formation in Guanling County,Guizhou.They occur together with marine reptiles,crinoids,ammonites,bivalves,conodonts,fishes,brachiopods etc.The Xiaowa Formation is composed of a sequence of marine deposits,in which fossil plants may have been carried to the bay from the land not far from the coast by rivers and deposited there.This finding not only adds a new element to the Guanling biota,but also provides further evidence for determining this biota to be of Carnian age.展开更多
Fossil Sequoia in Yunnan Province, China during the Miocene is here reported for the first time. The morphological features of shoots and cuticle are described. Its historical and geological distribution is also discu...Fossil Sequoia in Yunnan Province, China during the Miocene is here reported for the first time. The morphological features of shoots and cuticle are described. Its historical and geological distribution is also discussed. According to the characteristics of the assemblage of spore and pollen in the fossil collection site and the nature environment of the native S. sempervirens lived in American, the discovery of the fossil Sequoia indicated the presence of moist subtropical climate in Yunnan Province during the Miocene.展开更多
文摘In recent years,two species of fossil plants,i.e.Ctenozamites sarrani Zeiller and Equisetites arenaceus(Jaeger)Bronn,have been found for the first time in the Xiaowa Formation in Guanling County,Guizhou.They occur together with marine reptiles,crinoids,ammonites,bivalves,conodonts,fishes,brachiopods etc.The Xiaowa Formation is composed of a sequence of marine deposits,in which fossil plants may have been carried to the bay from the land not far from the coast by rivers and deposited there.This finding not only adds a new element to the Guanling biota,but also provides further evidence for determining this biota to be of Carnian age.
文摘Fossil Sequoia in Yunnan Province, China during the Miocene is here reported for the first time. The morphological features of shoots and cuticle are described. Its historical and geological distribution is also discussed. According to the characteristics of the assemblage of spore and pollen in the fossil collection site and the nature environment of the native S. sempervirens lived in American, the discovery of the fossil Sequoia indicated the presence of moist subtropical climate in Yunnan Province during the Miocene.
