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1.
A New Species of the Family Juraperlidae(Insecta:Grylloblattida)from the Middle Jurassic of China 总被引：1，自引：1，他引：0
<正>Juraperla grandis sp.nov.(Grylloblattida:Juraperlidae) is described from the Daohugou locality (Middle Jurassic,China).Its wing venation is very similar to that of Juraperla daohugouensis Huang and Nel,2007 (Grylloblattida:Juraperlidae),in the particular occurrence of a supplementary longitudinal vein in the area between the anterior wing margin and ScP.The larger size of the new specimen,the lower number of CuA1 branches,and the occurrence of two rows of cells between MP and CuA in forewings justify the erection of a new species,J.grandis sp.nov..The material also preserved hind wing and body structures,described for the first time in Juraperlidae. 相似文献
2.
贵州台江早—中寒武世凯里组的宏观藻类化石 总被引：7，自引：0，他引：7
本文描述了贵州寒武纪凯里组中的宏观藻类化石７属１２种,其中有６个新属１０个新种;Ｂｏｓｗｏｒｔｈｉａ ｓｉｍｕｌａｎｓ,Ｂ．ｇｙｇｅｓ,Ｅｏｌａｍｉｎａｒｉａ ｇｒａｎｄｉｓ ｇｅｎ。ｅｔ ｓｐ．ｎｏｖ。,Ｅ．ｐｅｒｅｌｅｇａｎｓ ｇｅｎ。ｅｔ ｓｐ。ｎｏｖ．,Ｆ．ｖｅｉｎ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｋａｉｌｉｐｈｙｔｏｎ ｓｉｍｕｌａｎｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｐａｌａｅｏｓｐｉｎｅ 相似文献
3.
New Fossil Xyelidae (Insecta, Hymenoptera) from the Yixian Formation of Western Liaoning, China 总被引：1，自引：0，他引：1
In this paper one new genus and two new species, Brachyoxyela brevinodia sp. nov. and Brachyoxyela gracilenta sp. nov., in the subfamily Macroxyelinae of the family Xyelidae, are described and illustrated. The specimens were collected from the Yixian Formation, the Upper Jurassic to Lower Cretaceous, of Beipiao City, Liaoning Province, northeastern China. The new genus is established based on the characters that vein Sc meets R only beyond origin of Rs, third antennal segment is almost equal in length to the rest flagellomeres combined, terminal flagellomeres increasingly shortened toward apex, and vein 2r-rs inclined toward the apex of wing. 相似文献
4.
新疆哈巴河县阿舍勒泥盆—石炭纪四射珊瑚 总被引：1，自引：0，他引：1
笔者1990—1991年在新疆哈巴河县阿舍勒采集和描述的四射珊瑚,经研究鉴定计有8属3新种和6未定种:Sinospongophyllum habaheens(sp. nov.), S. sp.,Orthophyllum sp.,Tryplasma Sp.,Cystophrentis achelenensis (sp. nov.), Siphonaphyllia habaheensis (sp. nov.),Clavilasma?sp.,Bifossularia?sp.,Amplexizaphrentis sp.等,它们分别归属于托克萨雷组、阿舍勒组和红山嘴组。 相似文献
5.
6.
Two new species, Cretolimonia excelsa sp. nov. and Mesotipula gloriosa sp. nov., in Limoniidae of Diptera are described and illustrated, based on three fossil specimens with bodies and complete wings. These specimens were collected from the latest Middle Jurassic Jiulongshan Formation at Daohugou, Inner Mongolia, China. These are the first fossil records of these two genera from China. 相似文献
7.
内蒙古霍林河盆地早白垩世植物化石 总被引：4，自引：2，他引：2
本文研究了内蒙古霍林河盆地霍林河组下含煤段的植物化石,共鉴定了21属36种。植物组合以蕨类占优势,银杏类、苏铁类和松柏类均有一定比例,同海拉尔盆地大磨拐河组所含植物组合成分相似。地层对比表明,霍林河组与海拉尔盆地的大磨拐河组和伊敏组可以对比,也能同阜新盆地的沙海组和阜新组对比。植物组合成分及地层对比都表明该植物组合时代为早白垩世早期。本文还描述了5个新种:
Coniopteris huolinhensis sp.nov,Cladophlebis neimengensis
sp.nov,pterophyllum huolinhense Sp.nov.pl.angustifolium Sp.nov,Nilssonia
zelimunsia Sp.nov. 相似文献
8.
昆仑山西段及喀喇昆仑山,部分四射珊瑚化石,经笔者研究计有:喀喇昆仑山楚隆帕斯坦中泥盆统落石沟组含Grypophyllum kelakunlunense(sp.nov.);昆仑山西段下石炭统他龙群产Diphyphyllum kunlunense(sp.nov.)喀喇昆仑山中石炭统含Protodurhamina kelakunlunensis(sp.nov.), Lithostrotionella sp.;昆仑山西段中、上石炭统库尔浪群含Protodurhamina kunlunensis (sp.nov.), Neokoninckophyllum sp., Kionophyllum kunlunense(sp. nov.), Paracarruthersella sp., Orygmophyllum convexum Fomitchev。 相似文献
9.
本文根据床板珊瑚化石,论证了新疆博罗科努山北坡精河县和霍城县境的“志留系石灰岩组”上部地层层位为上奥陶统,首次确定该区上奥陶统的存在。同时,还描述了上奥陶统呼独克达板组的床板珊瑚6属11种,其中有新种7个,旧种4个。这些资料的发表,不仅填补了该区奥陶纪珊瑚研究的空白,而且对该区奥陶纪地层时代的确定及与邻区的对比均有重要意义。 相似文献
10.
本文记述山东莱阳盆地早白垩世莱阳组（K1l3）草蛉科的一个新属——龙草蛉属（Drakochrysa gen.nov.）。新属以其脉序特色而区别于相近的幻草蛉属（Nothochrysa）,并修改了中草蛉属中一个种归入本新属。同时对草蛉科各个亚科的地史分布及新属的分类位置作了讨论。 相似文献
11.
喀喇昆仑山基本上属于地质空白区.1982年新疆地质矿产局区调大队四分队所采获的三叶虫等化石,描述了9属9种,其中5个新种,3个未定种,化石组合可以分为三个化石带:3.Lituites带;2.Ptychopyge-Chislioceras-Dideroceras带;1.Psilocephalina-Yinjiangia带.属于扬子型动物群. 相似文献
12.
西准噶尔中志留统和下泥盆统四射珊瑚新种 总被引：1，自引：0，他引：1
描述了产自新疆西准噶尔萨勒布尔山中志留统沙尔布尔组的孔壁珊瑚（Calostylis）几个新种CalostylisXinjangensis（sp．nov．），C．sharburensis（sp．nov．），C．mangkeluensis（sp．nov．），C．sp．A和下泥盆统的Amplexoidesmalasuensis（sp．nov．），Orthopaterophyllumkazachstanicum，Syringaxonsiluriense，S．mangkeluense（sp．nov．）等。与孔壁珊瑚（Calostylis）共生的还有四射珊瑚、床板珊瑚、腕足类及三叶虫，它们产在黄褐、褐、灰绿及紫红色凝灰粉砂岩夹灰岩凸镜体及硅化、大理岩化灰岩中。 相似文献
13.
新疆北部石炭纪单体珊瑚新资料 总被引：1，自引：0，他引：1
文中描述的10属10个新种单体珊瑚,全部是小型角锥状、弯锥状,具中轴者居多.系发育边缘厚结带,鳞板不发育的类型.其中Rylstonia,Fasciculiamplexus,Homalophy-llites.and Tetralasma等在新疆属首次发现,不仅丰富了本区石炭纪珊瑚的属种,而且为相关地区石炭纪地层的对比提供了新的依据.同时也证明当时的北极海与我国的北方海槽及华南海是相互沟通的. 相似文献
14.
Specimens of the Venicoridae (Heteroptera) occur in the Lower Cretaceous Yixian Formation in northeastern China. We describe a new genus and two new species Halonatusivena shii gen. et sp. nov. and Halonatusivena nervosus sp. nov. from this formation. The veins of the membrane are distinctive; the edges of veins are not simple but resemble an irregular stain, with a reduced vasiform structure previously unknown in the Heteroptera. Remarkably, the antennae of one of the specimens of Halonatusivena shii exhibit morphological abnormality. An identification key for the known species of the Venicoridae is provided. 相似文献
15.
西藏申扎地区下泥盆统达尔东组珊瑚化石新材料 总被引：3，自引：0，他引：3
系统描述了采自藏北申扎地区下泥盆统达尔东组的部分珊瑚类化石。其中，皱纹珊瑚7属5种(含1新种Hunanaxonia xizangensis sp．nov．)及2个未定种；床板珊瑚形珊瑚4属4种，含2个新种(Pachycanalicula sparcula sp．nov．，Paraheliolites zakangensis sp．nov．)。这些珊瑚化石的发现将有助于进一步了解本区早泥盆世珊瑚动物群的共生组合、演化以及珊瑚的古生物地理区系。 相似文献
16.
A new fossil species of Cyrtophyllitinae, Vitimoilus ovatus sp. nov., is described from the Dabeigou Formation and Yixian Formation of the Lower Cretaceous of China. It is clearly placed in Vitimoilus Gorochov, 1996 according to the following characters: R forking into RA and RP distally, M forking into MA and MP distally; CuA fused with CuPaα distal of the middle of the wing length; cross-veins in basal part of CuPb–CuPaβ area non-strongly curved. 相似文献
17.
李氏叶肢介（Leaid）在内蒙古上二叠统陶海营子组
的发现及其意义 总被引：1，自引：1，他引：0
2009年8月,在内蒙古大兴安岭地区扎鲁特旗陶海营子重新测制了上二叠统陶海营子组剖面。自下而上共发现3层叶肢介（包括2层李氏叶肢介类Leaid化石）,经鉴定为单脊型与双脊型的新种类。在中国,二叠纪的李氏叶肢介类（Leaid）化石前人仅在甘肃肃南县上二叠统肃南组发现过,计2属3种[1],其后一直未见报道。这类化石在大兴安岭地区的发现,填补了该时期中国东部李氏叶肢介类（Leaid）分布的空白,为该时期地层的区域对比和时代确定提供了重要的化石证据,具有重要的地层意义。同时,为进一步探讨它们的分布、迁徙、古生态、生物地理区系等增加了实际材料,具有古地理和古构造学上的理论意义。 相似文献
18.
Fourteen species of nonmarine gastropod opercula are found to be in high abundance in the Oligocene upper member of the Yehucheng Formation,Lanzhou Basin,northwest China.They are attributed to two families,namely Bithyniidae and Assimineidae,and four genera,namely Pseudemmericia,Bithynia,Mirolaminatus and Assiminea.Among them,three species are new,and they are Bithynia paramonolithic sp.nov.,B.obliquus sp.nov.,and B.disregularis sp.nov.Some of these species were first discovered in Paleogene strata of the vast Northwest China and can be compared with the opercula recovered from the Paleogene deposits in East and South China.It is inferred from the paleontology and sediment associations that the climate was slightly humid and the fauna probably inhabited the fresh or brackish water of a shallow lake in the Lanzhou Basin during the late early Oligocene period. 相似文献
19.
Two new species of elaterids assigned to two new genera with intriguing fossa on prosternum are described and illustrated： Bilineariselaterfoveatus gen. et sp. nov. and Curtelater wui gen. et sp. nov. from the Upper Jurassic-Lower Cretaceous Yixian Formation of western Liaoning, China. The origin of the clicking mechanism in these beetles and the systematic position of the two genera are briefly discussed. 相似文献
20.
河北抚宁付水寨附近早侏罗世中蠊科昆虫化石几个新种 总被引：1，自引：0，他引：1
描述了中蠊科昆虫化石4个新种:Rhipedoblattina jidongensis sp.nov.,Liadoblattina heishasyaoensis sp.nov.,Triassoblatta shimenzhaiensis sp.nov.Tr.longitriangulata sp.nov.通过岩性和化石保存特征分析,作者认为这些化石是经过短距离搬运后,在沼泽环境中保存下来的,与之共存的除少量植物碎片外,还未发现其它化石。 相似文献