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A New Genus of Paleonisciformes from the Early Cretaceous Longjiang Formation in Heilongjiang Province, China

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Acta Geologica Sinica(English Edition) 2018年第3期92卷 889-896页

作者： WANG Xuri TAN Kai lu liwu LI Tao CAI Qingqing Key Laboratory of Paleontology and Stratigraphy Ministry of Natural Resources Beijing 100037 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Hebei GEO University Shijiazhuang 050031 China The Geological Museum of China Beijing 100034 China Jilin University Museum Changehun 130026 China Liaoning Province Shiyan High Scholl Shenyang 110841 China

We report a new genus and species of Paleonisciformes-Cretolepis dongbeiensis gen. et sp. nov.,from the Early Cretaceous Longjiang Formation in Qiqihar City, Heilongjiang Province. The new materials can be distinguished from other Paleonisciformes genera by possessing the following characteristics: a sclerotic ring composed of more than five small bones; three pieces of suborbitals; one dermohyomandibular;a jaw hanging apparently inclined anteriorly; long and tall horizontal branch of the preopercular, a short vertical branch, with the angle formed by the two branches slightly higher than 90°; a triangular dorsal fin in the middle point between the pelvic and anal fins. The discovery of Mesozoic Paleonisciformes in northeastern China adds to the biodiversity and geographic distribution of Paleonisciformes.

关键词： Paleonisciformes Early Cretaceous Longjiang Formation northeastern China

CHARACTERIZATION OF Si-SiO_(2) INTERFACE STATES IN MOS CAPACITORS BY USING DLTS TECHNIQUE

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Chinese Physics Letters 1989年第12期6卷 545-548页

作者： lu liwu G.Groesendken C.Hasenack Institute of Semiconductors Academia SinicaBeijing100083 IMEC Kapeldreef 75B-3030 LeuvenBelgium

The Dit(interface states density)in p-type MOS capacitors subjected to a preoxidation heat treatment was investigated by using DLTS(Deep Level Transient Spectroscopy)*** is found that the strong dependence of the Dit on POHT(Preoxidation Heat Treatment)and starting oxygen content of substrates is *** DLTS technique can detects the presence of bulk defect(Et-Ev=0.29eV)at the interface presumably due to chlorine species.

关键词： technique. DLTS MOS

A NEW PADDLEFISH FROM THE UPPER JURASSIC OFNORTHEAST CHINA

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古脊椎动物学报(中英文） 1994年第2期 140-142页

作者： lu liwu(Geological Museum of China, Beijing 100034)

This paper describes a new fossil paddlefish, associated with Lycoptera, Peipioosteus, from the Upper Jurassic Yixian Formation, Lingyuan County, Liaoning Province, northeastern China. It is the earliest and most prim... 详细信息

关键词： Northeast China Late Jurassic Polyodontidae

Light Induced Rapid Thermal Diffusion of Boron Atom in Silicon

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Chinese Physics Letters 1992年第9期9卷 475-478页

作者： SHI Wanquan HOU Qingrun LIU Xuejun LIU Shixiang FU Zhengqing lu liwu LI Yuanjing Department of Physics Graduate SchoolAcademia SinicaBeijing 100039 Institute of semiconductors Academia SinicaBeijing 100083

We have studied the light induced rapid thermal diffusion of boron atom in *** samples were heated by the rapid thermal *** have carried out spreading resistance and deep level transient spectroscopy(DLTS)*** impurity distribution profile is much shallower and steeper than that of conventional thermal diffusion and the diffusion depth can be con-trolled to 0.1μ*** peaks in the deep level transient spectra were detected and the density of these defects ranges from 0.5 × 10^(12) to 5.6 × 10^(12)/cm^(3).The passivation and annihilation of these defects have been *** have also made the planar diode whose diameter is 500μ*** reverse current and the back breakdown voltage of the planar diode are 10^(-9) A and 80V respectively.

关键词： breakdown DLTS diffusion

Shenzhousia qilianshanensis gen. et sp. nov. (Protodonata, Meganeuridae), a giant dragonfly from the Upper Carboniferous of China

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Progress in Natural Science:Materials International 2006年第3期16卷 328-330页

作者： ZHANG Zhijun, HONG Youchong, lu liwu, FANG Xiaosi and JIN Yuegao (Department of Palaeontology, the Geological Museum of China, Beijing 100034, China Beijing Museum of Natural History, Beijing 100050, China) Department of Palaeontology the Geological Museum of China Beijing 100034 China Beijing Museum of Natural History Beijing 100050 China

A new dragonfly of family Meganeuridae Shenzhousia qilianshanensis gen. et sp. nov., discovered from Ningxia Hui Autonomous Region in North China, is described in the present paper. It has an estimated wingspan of about 450-500mm and may be the largest fossil insect in Late Carboniferous Namurian Stage discovered by far. The new species is referred to Meganeuridae because of the presence of the characteristic oblique vein between anterior branch of radius (RA) and posterior branch of radius (RP) near the base of RP2. It differs from other genera within the family in the following characteristics: Precostal area short and not extending to the midwing; posterior branch of subcostal vein short, merging into costal vein near the level of originating point of IR2; RP forking earlier than anterior branch of media basally; RP1+2 and RP3+4 parallel and close to each other for a long distance, and then diverge gradually surpass midwing.

关键词： Namurian Meganeuridae Ningxia Hui Autonomous Region Upper Carboniferous Tupo Formation.

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中华原始软骨硬鳞鱼之再描述及其地质时代

地学前缘 2020年第6期27卷 371-381页

作者：卢立伍谭锴王曦中国地质博物馆北京100034

鲟形鱼类是一类脊椎骨尚未完全骨化、鳞片极度退化的原始辐鳍鱼类。本文重新系统描述了该类别中时代最古老的中华原始软骨硬鳞鱼(Eochondrosteus sinensis lu,Li et Yang,2005),补充并修订了其古生物学特征。该鱼类具有扇形的下鳃盖骨... 详细信息

鲟形鱼类是一类脊椎骨尚未完全骨化、鳞片极度退化的原始辐鳍鱼类。本文重新系统描述了该类别中时代最古老的中华原始软骨硬鳞鱼(Eochondrosteus sinensis lu,Li et Yang,2005),补充并修订了其古生物学特征。该鱼类具有扇形的下鳃盖骨、多块条形鳃条骨、较大的喉板骨、具齿的上、下颌,且全身仅在尾鳍上叶具有鳞片等特征,可以区别于鲟形鱼类其他属种。初步的支序系统发育分析表明,Eochondrosteus可能是鲟形鱼类中最原始的类群,与所有其他鲟形鱼类的祖先类群构成一个姐妹群;同时其具有一些古鳕类才普遍拥有的特征,如相对较大的喉板骨和眶下骨等,有可能是原始辐鳍鱼类向鲟形鱼类进化过程中的过渡类型。这一鲟形鱼类化石产于甘肃省肃北县马鬃山镇西北约50 km的方山口组深灰色粉砂质页岩中。根据野外实地调查和岩石地层学、生物地层学对比,该鱼类的时代有可能是早三叠世,而非命名时认为的晚二叠世,但仍是迄今已发现的时代最古老之鲟形鱼类。

关键词：原始软骨硬鳞鱼鲟形鱼类系统分类晚二叠世或早三叠世中国西北

似希腊鼻原角龙(角龙亚目:原角龙科)在内蒙古阿拉善地区的发现

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地质学报 2022年第11期96卷 3722-3732页

作者：陈晓云谭锴卢立伍姬书安中国地质博物馆地质标本研究与检测实验室北京100034 中国地质科学院地质研究所自然资源部地层与古生物重点实验室北京100037

本文记述了内蒙古西部阿拉善右旗阿拉腾敖包镇巴音塔拉一带上白垩统乌兰苏海组中的2件原角龙属Protoceratops头骨化石,头骨全长超过700 mm、齿骨腹缘近于平直、上颌骨侧面近水平向的嵴较直且较弱、无上颌骨齿,表明其应归入似希腊鼻原角... 详细信息

本文记述了内蒙古西部阿拉善右旗阿拉腾敖包镇巴音塔拉一带上白垩统乌兰苏海组中的2件原角龙属Protoceratops头骨化石,头骨全长超过700 mm、齿骨腹缘近于平直、上颌骨侧面近水平向的嵴较直且较弱、无上颌骨齿,表明其应归入似希腊鼻原角龙***。该种鉴定特征被修订为:原角龙属个体较大的种,头骨全长超过700 mm,鼻骨角突发育,无前颌骨齿,上颌骨侧面前后方向的嵴相对平直且较弱,鳞骨腹突伸长且与方轭骨相接触,齿骨腹缘平直,前齿骨前缘与腹缘形成一明显夹角,隅骨后缘由一向后的三角形面形成。这是似希腊鼻原角龙在阿拉善地区的首次确切记录,阿拉善右旗巴音塔拉也成为该种化石继内蒙古乌拉特后旗巴音满都呼之后的第2个分布区,大大扩展了该种的地理分布范围,并为两地晚白垩世恐龙动物群的对比研究提供了关键信息。

关键词：似希腊鼻原角龙原角龙科上白垩统乌兰苏海组阿拉善右旗

记内蒙古阿拉善右旗晚白垩世的绘龙属(甲龙科)化石

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地质学报 2022年第11期96卷 3733-3740页

作者：谭锴陈晓云卢立伍姬书安中国地质博物馆地质标本研究与检测实验室北京100034 中国地质科学院地质研究所自然资源部地层与古生物重点实验室北京100037

本文记述了内蒙古西部阿拉善右旗阿拉腾敖包镇巴音塔拉一带上白垩统乌兰苏海组一件甲龙类不完整头后骨架,其愈合荐骨至少由4枚背荐椎、4枚荐椎组成,最后1对背荐肋中部和远端强烈加宽且显著向后弯曲,游离尾椎10枚,后部尾椎神经棘、前关... 详细信息

本文记述了内蒙古西部阿拉善右旗阿拉腾敖包镇巴音塔拉一带上白垩统乌兰苏海组一件甲龙类不完整头后骨架,其愈合荐骨至少由4枚背荐椎、4枚荐椎组成,最后1对背荐肋中部和远端强烈加宽且显著向后弯曲,游离尾椎10枚,后部尾椎神经棘、前关节突与脉棘明显拉长且包裹后部尾椎椎体,应被归入甲龙亚科Ankylosaurinae的绘龙属Pinacosaurus,但种名暂未确定。阿拉善右旗巴音塔拉也成为绘龙属在内蒙古自治区继乌拉特后旗巴音满都呼、阿拉善左旗“栅栏呼都克”之后的第3个分布地点,扩展了该属化石的地理分布范围,并为阿拉善右旗巴音塔拉与乌拉特后旗巴音满都呼晚白垩世恐龙动物群的对比提供了新的古生物学依据。

关键词：绘龙属甲龙亚科上白垩统乌兰苏海组阿拉善右旗

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新疆柯坪中古生代无颌类及鱼类新知

地球学报 2007年第2期28卷 143-147页

作者：卢立伍潘江赵丽君中国地质博物馆北京100034 浙江自然博物馆浙江杭州310012

本文记述了新疆柯坪志留纪塔塔埃尔塔格组中发现的盔甲鱼类一新种,张氏南疆鱼Nanjiangaspis zhangi ***.)和汉阳鱼类一未定种(Hanyangaspis sp.)。前者以横椭圆形的前中背孔,7对侧横管,2对背中管等特征归于南疆鱼属,并以瘤点状纹饰等特... 详细信息

本文记述了新疆柯坪志留纪塔塔埃尔塔格组中发现的盔甲鱼类一新种,张氏南疆鱼Nanjiangaspis zhangi ***.)和汉阳鱼类一未定种(Hanyangaspis sp.)。前者以横椭圆形的前中背孔,7对侧横管,2对背中管等特征归于南疆鱼属,并以瘤点状纹饰等特征区别于南疆鱼属型种;后者的前腹片特征和雪花状纹饰表明其归属于汉阳鱼类,在前腹片形状上与属型种稍有一些区别。文中还记述了一件发现于克兹尔塔格组的节甲鱼类化石(Arthrodira indet.)。

关键词：塔里木中古生代无颌类鱼类