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茂县牟托村“翼龙”与三星堆龙之比较——兼论三星堆文化向北传播的途径 被引量:1
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作者 于春 《考古与文物》 CSSCI 北大核心 2005年第2期52-56,共5页
关键词 茂县牟托村 “翼龙” 三星堆龙 文化向北传播途径 祭祀坑 考古发掘
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“翼龙”如何穿“龙门”?
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作者 金良 《航空模型》 2004年第3期29-29,共1页
“翼龙”慢速机简介“翼龙”遥控慢速机是深圳艾特公司开发的三通道比例遥控电动模型飞机,被指定为今年“希望杯”全国青少年航模竞赛的参赛机种。该模型在设计上采用了人翼面积、低重心、“S”翼型的设计,突出低空、低速的飞行性能... “翼龙”慢速机简介“翼龙”遥控慢速机是深圳艾特公司开发的三通道比例遥控电动模型飞机,被指定为今年“希望杯”全国青少年航模竞赛的参赛机种。该模型在设计上采用了人翼面积、低重心、“S”翼型的设计,突出低空、低速的飞行性能,初学者易于掌握,并且很适合穿“龙门”飞行。 展开更多
关键词 “翼龙”遥控慢速机 电动模型飞机 航空模型比赛 设计 竞赛规则
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自然
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《财会通讯(上)》 北大核心 2004年第7期U014-U014,共1页
关键词 中国 大熊猫 宽尾凤蝶 “翼龙”胚胎化石 野生动物保护 考古 生活习性 珍稀生物资源
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A new pterosaur (Pterosauria) from Middle Jurassic Tiaojishan Formation of western Liaoning,China 被引量:5
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作者 LU Junchang FUCHA Xiaohui 《Global Geology》 2010年第3期113-118,共6页
A new pterosaur Archaeoistiodactylus linglongtaensis gen. et sp. nov. is erected based on an incomplete skeleton with a partial skull and lower jaw. The new taxon is characterized by circular tooth sockets of anterior... A new pterosaur Archaeoistiodactylus linglongtaensis gen. et sp. nov. is erected based on an incomplete skeleton with a partial skull and lower jaw. The new taxon is characterized by circular tooth sockets of anterior mandibular teeth,the anterior teeth of the upper jaw bearing posteriorly directed crowns,a relatively short metacarpus,and wing phalanges 2 and 3 and the tibia subequal in length. It possesses some plesiomorphic characters such as short metacarpals and circular tooth sockets. The pointed jaw tip present in the new taxon indicates that the expanded jaw tips of later istiodactylids are a derived character state,and the new taxon represents the first istiodactylus-like pterosaur found from the pre-Late Jurassic deposits,which provides a key role in our understanding the origin and evolution of the known istiodactylid pterosaurs. Archaeoistiodactylus is regarded as the ancestor form of the known istiodactylid pterosaur. 展开更多
关键词 Archaeoistiodactylus PTEROSAURIA Middle Jurassic Tiaojishan Formation western Liaoning
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LITERATURE RESEARCH ON SCREENING OF THE NUCLEUS ACUPOINTS FOR TREATMENT OF INTELLECTUAL DISTURBANCES
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作者 陈永灿 杨楣良 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1999年第2期83-88,共6页
Intelligence-benefiting acupuncturerefers to the acupuncture-moxibustiontreatment of intellectual disturbances byremoving obstructions in channels andcollaterals,regulating yin and yang,andeliminating pathogenic facto... Intelligence-benefiting acupuncturerefers to the acupuncture-moxibustiontreatment of intellectual disturbances byremoving obstructions in channels andcollaterals,regulating yin and yang,andeliminating pathogenic factors to strengthenthe body resistance,with the effects ofstrengthening the brain,benefiting intelligence, 展开更多
关键词 Acupuncture Points Acupuncture Therapy China DEMENTIA History 15th Century History 16th Century History Medieval Humans Intelligence Mental Retardation
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A manus dominated pterosaur track assemblage from Gansu,China: implications for behavior
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作者 李大庆 邢立达 +6 位作者 Martin G. Lockley Laura Pi uela 张建平 代辉 Jeong Yul Kim W. Scott Persons IV 孔得来 《Science Bulletin》 SCIE EI CAS CSCD 2015年第2期264-272,I0003,共10页
The Yangouxia dinosaur tracksites are well known for a diverse assemblage of tetrapod tracks preserved as natural impressions (concave epireliefs) on large bedding planes, representing a locally widespread surface m... The Yangouxia dinosaur tracksites are well known for a diverse assemblage of tetrapod tracks preserved as natural impressions (concave epireliefs) on large bedding planes, representing a locally widespread surface marking the transition from a sand- to a mud-dominated sequence in the Hekou Group. Previous ichnological studies at these large sites have focused on the morphology and ichnotaxonomy of the tracks, including a single trackway representing the first pterosaur tracks reported from China. Here, we report a distinctly different assemblage associated with minor sandstones in the mud-dominated sequence 20 m above the main tracksite level. This assemblage consists of at least 20 pterosaur manus track casts attributed to a single ichnotaxon (Pteraichnus). No pes tracks have been identified. These tracks mostly occur in random orientations, although one possible trackway segment is inferred, to represent walking progression.Manus-only pterosaur track assemblages are common and likely reflect differential registration depths of manus and pes and/or sub optimal preservation conditions. The tracks are associated with distinctive invertebrate traces including Cochlichnus, Spongeliomorpha and Paleophycus and suggest the pterosaurs were likely feeding on the invertebrate tracemakers. 展开更多
关键词 Early Cretaceous Gansu Province Yangouxia PTEROSAURS Pteraichnus LANZHOU Minhe Basin
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