In 1985, during the mapping on 1:50000 in the Zhoukoudian area, Cao Boxun et al. discovered a cave-fissure site (called east cave) with abundant mammal fossils. The site is located on the north slope of the Taipingsha...In 1985, during the mapping on 1:50000 in the Zhoukoudian area, Cao Boxun et al. discovered a cave-fissure site (called east cave) with abundant mammal fossils. The site is located on the north slope of the Taipingshan Hill, about 2km northeast of the Loc. 1(the 'Peking man'site) and about 140m above the sea level. Cao et al. collected some mammal fossils from the locality and studied sediments in stratigraphy, sporopollen展开更多
This paper deals with a new Early Pleistocene micromammalian fauna found in Choukonden (Zhoukoudian) and its application in biostratigraphy.The new locality (east cave ), discovered in 1985,is located on the north slo...This paper deals with a new Early Pleistocene micromammalian fauna found in Choukonden (Zhoukoudian) and its application in biostratigraphy.The new locality (east cave ), discovered in 1985,is located on the north slope of the Taipingshan Hill, about 2 km northeast of the Loc.1 in Choukoutien and is about 140-150m in altitude. At this locality,abundant fossil mammals are found in thick cave-fissure deposit. This fauna comprises 30mammalian taxa. Based on the comparison of the fauna, as Well as the sporo-pollen, climate events and paleomagnetic polarity section with those in other areas,we come to the conclusion that the sediments (Taipingshan Formation) in east cave were formed during the Period about from 1.67 Ma B. P. to 0.97 Ma B. P., and the fauna is about 1.20 Ma B. P. in ags.展开更多
A lion-like pantherine felid is described as Panthera(Leo)fossilis from the late Early Pleistocene sediments of the Kuznetsk Basin(Western Siberia,Russia).The find of P.fossilis first recorded in Asia considerably ext...A lion-like pantherine felid is described as Panthera(Leo)fossilis from the late Early Pleistocene sediments of the Kuznetsk Basin(Western Siberia,Russia).The find of P.fossilis first recorded in Asia considerably extends the current notion of the eastward expansion of the most ancient lions.The Siberian lion is geologically the oldest form and is dimensionally among the largest members of the group of fossil lions on the Eurasian continent.Although known by mandibular remains only,it is readily distinguished from Panthera(Leo)spelaea by a heavy built mandibular corpus with rectangular profile in the cheek teeth area,a deep,well-outlined and narrow anterior section of the masseteric fossa,and a largeр4 supported by a big unreduced anterior root.The Siberian lion shares these features with the European Middle Pleistocene P.fossilis and the American Late Pleistocene P.(Leo)atrox,which suggests their close relationship.P.atrox originated from P.fossilis and was isolated in North America south of the Late Pleistocene ice sheets.This explains why the American lion has retained more primitive features than the coeval Eurasian cave lion P.(L.)spelaea.展开更多
Based on field geological survey, stratigraphic section measurement and indoor comprehensive investigation, the Zanda Basin's tectonic location in the Himalaya Plate was ascertained, and the formation and evolution o...Based on field geological survey, stratigraphic section measurement and indoor comprehensive investigation, the Zanda Basin's tectonic location in the Himalaya Plate was ascertained, and the formation and evolution of the Zanda Basin during the Pliocene to Early Pleistocene was classified as six stages: (a) primary rift-faulting stage, (b) quick rift-faulting Stage, (c) intensive rift-faulting stage, (d) stasis stage, (e) secondary rift-faulting stage, and (f) secondary quick rift-faulting stage. Based on this six-staged formation-evolution theory of the Zanda Basin, the upwelling process of the Western Himalaya Mountains from the Pliocene to Early Pleistocene was classified as the following five stages: (a) slow upwelling stage (5.4-4.4 Ma), (b) mid-velocity upwelling stage (4.4-3.5 Ma), (c) quick upwelling stage (3.5-3.2 Ma), (d) upwelling-ceasing stage (3.2-2.7 Ma), and (e) quick upwelling stage (2.7 Ma). Research has shown that in the duration from the Early Pliocene (4.7 Ma) to the End of Pliocene (2.67 Ma), which lasted 2.03 million years, the Himalaya Mountains had uplifted 1500 m at a velocity of 0.74 mm/a; this belongs to a mid-velocity upwening. During the 1.31 million years in the Early Stage of the Early Pleistocene, the Himalaya Mountains had risen up another 1500 m at a velocity of 1.15 mm/a; this is a rather quick upwelling. All of these data have shown that the upwelling of the Western Himalaya Mountains is along a complicated process with multi-stages, multi-velocities, and non-uniformitarian features.展开更多
基金the Ministry of Geology and Mineral Resources of China and Bingjing Burean of Geology andMineral Resources
文摘In 1985, during the mapping on 1:50000 in the Zhoukoudian area, Cao Boxun et al. discovered a cave-fissure site (called east cave) with abundant mammal fossils. The site is located on the north slope of the Taipingshan Hill, about 2km northeast of the Loc. 1(the 'Peking man'site) and about 140m above the sea level. Cao et al. collected some mammal fossils from the locality and studied sediments in stratigraphy, sporopollen
文摘This paper deals with a new Early Pleistocene micromammalian fauna found in Choukonden (Zhoukoudian) and its application in biostratigraphy.The new locality (east cave ), discovered in 1985,is located on the north slope of the Taipingshan Hill, about 2 km northeast of the Loc.1 in Choukoutien and is about 140-150m in altitude. At this locality,abundant fossil mammals are found in thick cave-fissure deposit. This fauna comprises 30mammalian taxa. Based on the comparison of the fauna, as Well as the sporo-pollen, climate events and paleomagnetic polarity section with those in other areas,we come to the conclusion that the sediments (Taipingshan Formation) in east cave were formed during the Period about from 1.67 Ma B. P. to 0.97 Ma B. P., and the fauna is about 1.20 Ma B. P. in ags.
基金We gratefully acknowledge Nikolai Ovodov for providing additional data on the material from Kurtak archaeological area.We thank Alexey Tesakov for scientific discussion that critically improved the paper.We are also indebted to Katya Firsova and Igor Foronov,who kindly prepared the design of figures for the purpose of this study.M.Sotnikova acknowledges the financial support from the Russian Foundation for Basic Research,project 12-05-00-904a.
文摘A lion-like pantherine felid is described as Panthera(Leo)fossilis from the late Early Pleistocene sediments of the Kuznetsk Basin(Western Siberia,Russia).The find of P.fossilis first recorded in Asia considerably extends the current notion of the eastward expansion of the most ancient lions.The Siberian lion is geologically the oldest form and is dimensionally among the largest members of the group of fossil lions on the Eurasian continent.Although known by mandibular remains only,it is readily distinguished from Panthera(Leo)spelaea by a heavy built mandibular corpus with rectangular profile in the cheek teeth area,a deep,well-outlined and narrow anterior section of the masseteric fossa,and a largeр4 supported by a big unreduced anterior root.The Siberian lion shares these features with the European Middle Pleistocene P.fossilis and the American Late Pleistocene P.(Leo)atrox,which suggests their close relationship.P.atrox originated from P.fossilis and was isolated in North America south of the Late Pleistocene ice sheets.This explains why the American lion has retained more primitive features than the coeval Eurasian cave lion P.(L.)spelaea.
基金supported by the National Natural Science Foundation Project(Grant No.40572134)the China Geological Survey Projects"The Key Tertiary Ancient Lakes Environmental Evolution Series of China's Qinghai-Tibet Plateau"(Grant No.Science[2005]005-02+2 种基金1212010511902)"The Study of Neotectonics and Late Cenozoic Gigantic Ancient Lakes of China's Qinghai-Tibet Plateau"(Grant No.Basic[2008]Tibet 21-18Grant No. 1212010610108)
文摘Based on field geological survey, stratigraphic section measurement and indoor comprehensive investigation, the Zanda Basin's tectonic location in the Himalaya Plate was ascertained, and the formation and evolution of the Zanda Basin during the Pliocene to Early Pleistocene was classified as six stages: (a) primary rift-faulting stage, (b) quick rift-faulting Stage, (c) intensive rift-faulting stage, (d) stasis stage, (e) secondary rift-faulting stage, and (f) secondary quick rift-faulting stage. Based on this six-staged formation-evolution theory of the Zanda Basin, the upwelling process of the Western Himalaya Mountains from the Pliocene to Early Pleistocene was classified as the following five stages: (a) slow upwelling stage (5.4-4.4 Ma), (b) mid-velocity upwelling stage (4.4-3.5 Ma), (c) quick upwelling stage (3.5-3.2 Ma), (d) upwelling-ceasing stage (3.2-2.7 Ma), and (e) quick upwelling stage (2.7 Ma). Research has shown that in the duration from the Early Pliocene (4.7 Ma) to the End of Pliocene (2.67 Ma), which lasted 2.03 million years, the Himalaya Mountains had uplifted 1500 m at a velocity of 0.74 mm/a; this belongs to a mid-velocity upwening. During the 1.31 million years in the Early Stage of the Early Pleistocene, the Himalaya Mountains had risen up another 1500 m at a velocity of 1.15 mm/a; this is a rather quick upwelling. All of these data have shown that the upwelling of the Western Himalaya Mountains is along a complicated process with multi-stages, multi-velocities, and non-uniformitarian features.