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1.
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   

2.
甘肃酒泉盆地早白垩世植物化石及其古气候意义   总被引:3,自引:0,他引:3  
邓胜徽  卢远征 《地质学报》2008,82(1):104-114
首次较系统报道了产于甘肃酒泉盆地下白垩统的植物化石,分为两个植物组合。Athrotaxites-Solenites组合产于赤金堡组上段,有Solenites luanpingensis Wang,Pityocladus cf.i waianus(ishi)Chow,Pityocladus sp.,Athrotaxites berryi Bell等,时代大致为早白垩世早期,反映潮湿或半干旱半潮湿气候。Brachyphyllum-Pseudofrenelopsis组合见于中沟组上部,包括Sphenopterissp.,Pseudofrenelopsis dalatzensis(Chowet Tsao)Cao ex Zhou,Cupressinocladus elegans(Chow)Chow,Cupressinocladus sp.,Pagiophyllumyumenense sp.nov.,Pagiophyllumcompressum sp.nov.,Pagiophyllum sp.,Brachyphyllumningshiaense Chow et Tsao,Brachyphyllumobtusum Chow et Tsao,Elatocladus sp.,Podozamites sp.,Carpolithus sp.等12种,时代为Aptian-Albian期,反映干旱型气候。  相似文献   

3.
广西隆林地区早石炭世异珊瑚类   总被引:2,自引:0,他引:2       下载免费PDF全文
本文描述异珊瑚类3属9种,标本采自广西隆林、隆或等地,其层位相当于贵州下石炭统大塘阶上部的Yuanophyllum带。建立新属一个Longlinophyllia(gen.nov.),新种和新亚种6个: Hexaphyllia longliensis (sp. nov.), H. gigantea crassotheca (subsp. nov.), H. tenuis longhuoensis (Subsp. nov.), Heterophyllia kitakamiensis flexuosa (subsp. nov.), H. guangxtensis (sp.nov.) 和 Longlinophyllia ditabulata (gen. et sp. nov.)。新属Longlinophyllia的隔壁和横板均可分为轴部与侧部两种类型,不同于Heterophylliidae科内的属,因此可以建立一个新科Longlinophylliidae(fam. nov.)。  相似文献   

4.
本文描述的伊朗珊瑚(Iranophyllum)是1971和1984年第一区调队在新疆南部昆仑山下二叠统黄羊岭群和叶桑岗组采集的,共4新种和1未定种,名单是:Iranophyllum xinjiangense(sp.nov).Ir.kunlunense(sp.nov.),Ir.clisiophylloides(sp.nov.),Ir.neoclisio-phylloides(sp.nov.),Ir.sp.A等.与其共生的有(?)类:Sumatrina annae,Verbeekina of.verbeeki,paraverbeekina of.umbi-lcata,Polydiexodina sp.,Yangchienia sp.,Neo-misellina sp.,parafusulina sp.,Chusenella sp.,Afghanella?sp.,腕足:Neospir-ifer sp.,Martinia sp.,Stenoscisma sp.,Waagenoconcha sp.,四射珊瑚:Amplexo-carinia sp.,Huangophyllum sp.,Lytvolasma sp.,plerophyllum sp.等.因此,含Ira-nophyllom的黄羊岭群和叶桑岗组应属同一层位,它们与新疆喀喇昆仑地区空喀山口组、西藏阿里地区龙格组及文部组是相当的.  相似文献   

5.
湖南中泥盆统一下石炭统海参化石   总被引:3,自引:0,他引:3  
本文描述了湖南中泥盆统—下石炭统海参化石6个属、12个种(1个新属、8个新种):T huroholia crassa sp. nov., Th. hexangularia sp, nov., Th.pulchra sp. nov., Th. marginata Langenheim&Fpis, Th. regularis sp. nov., paraeocaudina minularis gen. et sp. nov., Paracucumarites asymmetricus sp, nov., Protocaudina traquairii(Ftheridge). Pro. symmetrica sp. nov., Microantyx betoni Gutschick. Mortensenites teat sp. nov,, 讨论了它们的地层分布和地层对比。此外,扼要地介绍了海参化石基本构造及其地层意义。  相似文献   

6.
新疆昆仑山中泥盆世四射珊瑚   总被引:1,自引:0,他引:1  
新疆昆仑山中泥盆世四射珊瑚较为丰富.本文只描述Atelophyllum sp.,Cyatho-phyllum sp.,Disphylloides philomena,Disphyllum carinatum(sp.nov.),Xystriphyllumkunlunense(sp.nov.)等5属3种,其中有二个新种.其共生的有床板珊瑚、层孔虫、及腕足类等.它们均产于中泥盆统布拉克巴什群.可与新疆北部、内蒙、甘肃、陕西、贵州等地的同期地层对比.  相似文献   

7.
<正>The classification and phytogeny of the basal Vespina(=Orussoidea+Apocrita)are reconsidered based primarily on rich and well preserved material from the Middle Jurassic of Daohugou in Inner Mongolia,China. Comparatively smooth morphological transitions are traced from a Xiphydriidae-like ancestor toward Orussoidea via the Jurassic family Karatavitidae,and through Karatavitidae and the Jurassic and Early Cretaceous family Ephialtitidae independently to Stephanidae,to Evanioidea,and,via the extinct Jurassic Kuafuidae fam.nov.to the remaining Apocrita.New hypothesis is proposed concerning development of the characteristic wasp-waist of Apocrita,which is supposed to appear independently and in different ways in Evanioidea and in the rest of Apocrita.As a result,six infraorders are proposed for the suborder Vespina with the following taxonomic structure:infraorder Orussomorpha including the only superfamily Orussoidea(Karatavitidae+Paroryssidae + Orussidae),infraorder Stephanomorpha with the only superfamily Stephanoidea(Ephialtitidae+Stephanidae), infraorder Evaniomorpha with the only superfamily Evanioidea of traditional composition,infraorder Ceraphronomorpha with the superfamilies Ceraphronoidea s.str.and monotypical Megalyroidea and Trigonaloidea,and the infraorders Proctotrupomorpha,Ichneumonomorpha,and Vespomorpha of traditional composition.The family Kuafuidae is unplaced to infraorder because it is putatively paraphyletic with respect to Ceraphronomorpha,Proctotrupomorpha,Ichneumonomorpha and Vespomorpha.Described as new are Karatavites junfengi sp.nov,Praeratavites wuhuaensis sp.nov.,P.perspicuus sp.nov.,Postxiphydria daohugouensis gen.et sp.nov.,P.ningchengensis gen.et sp.nov.,Postxiphydroides strenuus gen.et sp.nov.,Praeratavitoides amabilis gen.et sp.nov.,Proapocrtius densipediculus sp.nov.,P.sculptus sp.nov.,P.longantennatus sp.nov., P.formosus sp.nov.,P.atropus sp.nov.,P.elegans sp.nov.,Stephanogaster pristinus sp.nov.,Asiephialtites lini sp. nov.,Praeproapocritus vulgatus gen.et sp.nov.,Sinaulacogastrinus solidus gen.et sp.nov.,Sinevania speciosa gen. et sp.nov.,Eonevania robusta gen.et sp.nov.,Kuafua polyneura gen.et sp.nov.(all from the Middle Jurassic of Daohugou),as well as Kuafuidae fam.nov.including Kuafua gen.nov.as well as Arthrogaster Rasnitsyn,1975,and Leptogastrella Rasnitsyn,1975 from the Upper Jurassic of Karatau in Kazakhstan.  相似文献   

8.
本文描述陕西镇安西口石门垭下石炭统顶部及中石炭统底部的四射珊瑚9属11新种。 1982年6月笔者随同中国地质科学院“石炭二叠系界线”专题研究队丁蕴杰等在陕西南部镇安县西口区石门垭测制剖面。该剖面中所采早、中石炭世四射珊瑚交由笔者鉴定。本文即为这批材料中的新属种,共9属(包括3新属、2新亚属)11新种。石门垭剖面中、下石炭统为连续沉积,岩性均为灰、浅灰色厚层灰岩。此界线上下发现有四个主要珊瑚化石层,自上而下产: 4.Acrocyathus xikouensis sp.nov.,Amandophyllum xikouense sp.nov.,Carruther-sella(Liuzhouia) shimenyaensis subgen.et sp.nov.,Koninckocarinia shaanxiensis sp.nov。,Kionophyllum sp.,Amygdalophylloides sp.和 pseudostaffella。 3.Liuia typica gen.et sp.nov.和pseudostaffella。 2.Semenoffia (pseudosemenoffia) typica subgen. et sp.nov.,Carruthersellazhenanensis sp.nov.。 1.paranemistium typicum gen.et sp.nov.,Cystilophophylloides typicus gen.et sp.nov.,C.shimenyaensis gen。et sp.nov.,C.xikouensis gen.et sp.nov,Arachnolasmaspp.,Amplexocarinia sp.,Zaphrentoides sp.,Siphonodendron sp.,Protocarcinophyllum sp. 上列层3-4内产蜓仅pseudostaffella,故时代为中石炭世早期pseudostaffella带。层1产产大量Arachnolasma种群及Protocarcinophyllum其时代定为早石炭世晚期似无疑问。层2中未采得蜓类,其时代据四射珊瑚Carruthersella的存在暂定为早石炭世末期。丁蕴杰同志给予笔者研究这批材料的机会并与夏国英、赵松银等同志共同采集化石,欧阳萱、金同安等同志给予笔者支持和帮助均此致谢。  相似文献   

9.
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   

10.
湖南西部和贵州东部奥陶系临湘组,地层厚度甚小,但含有较丰富的三叶虫化石,经作者研究共计11个属15个种和2个未定种,其中包括1个新属Dayongia(gen.nov.)和7个新种:Madygenia exsculpta sp.nov.,Madygenia tuberculata sp.nov.,Davongia brevica gen.& sp.nov.,Dayongia longicephala gen.& sp.nov,Eobronteus hunanensis sp.nov.,Shuma-rdia songtaoensis sp.nov.,Encrinurells exsculpta sp.nov.。这个动物群除具有我国地方性色彩外,同时具有与欧洲动物群明显的近似性。其时代应属晚奥陶世,相当于欧洲Ashgill期。  相似文献   

11.
1986年辽宁省地矿局区调队在大连市棋盘磨和杨家屯震旦系兴民村组发现水母类化石。本人进行了较详细的研究,根据其结构和生态特征,确定为腔肠动物门水螅虫纲水母化石,并命名为大连水母动物群。文中对其中的2个新属,7个新种进行了描述,它们为:Cyclomedusa qipanmoensis sp.nov.,Cyclomedusa stellatus sp.nov.,Medusinites monoseamoformis sp.nov.,Medusinites planodiscifo-rmis sp.nov.,Ellipsomedusa liaonanensis gen.et sp.nov.,Ellipsome-dusa dalianensis gen.sp.nov.,Quadratimedusa liaoningensis gen.etsp.nov.这一发现和研究无疑确定了大连地区震旦系的存在。  相似文献   

12.
邓胜徽 《现代地质》1993,7(3):255-260,T001
本文据产于内蒙古霍林河盆地早白垩世地层的生殖羽片材料建立了膜蕨科的Hymenophyllites linearifolius sp.nov.和铁线蕨科的Adiantopteris eleganta sp.nov.,并从植物形态、生殖器官和生态特征等方面与现生类别进行了对比。本文还描述了同一产地和层位的Cladophlebis latibasis sp.nov,及产自辽宁铁法盆地早白垩世的Sphenopteris liaoningensis sp.nov.。  相似文献   

13.
Bivalved arthropods are very important elements in Mid-Cambrian Kaili Biota.Three genera,Alicaris,Pseudoarctolepis,and Forfexicaris,are herein recorded for the first time,including three new species:Alicaris kailiensis sp.nov.,Forfexicaris reticulata sp.nov.,and Pseudoarctolepis semicircularis sp.nov.,of which Alicaris kailiensis sp.nov.could be assigned to crustaceomorphs;the other two forms are grouped as proschizoramians.These forms provide important information about the distribution and species dive...  相似文献   

14.
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   

15.
湘西震旦系留茶坡组炭质宏化石初步研究   总被引:8,自引:0,他引:8  
初步研究表明,留茶坡组中部黑色页岩中化石呈炭质压膜状保存,主要包括长绳状或带状宏观藻:Chenlidenella spiralis gen.et sp.nov.,Longifuniculum dissutum Steiner,Erdtmann and Chen,1992,Longitaenina triphyllus gen.et sp.nov.,L.rhodina gen,et sp.nov.,L.lanceolatus gen.et sp.nov.;直立不分枝的管状 宏观藻Longfengshania elongata Duan et Du,1985,L.elliptic-ulum sp.nov,Paralongfengshania oblong sp.nov.Miaohenella hunanensis(Steiner,Erdtmann and Chen,1992),M.rhomba Ding,1996,M.taenina sp.nov.,Cystoculum catenuatus gen.et sp.nov.;末端存在二歧式分的丝状宏观藻:Sectoralga bibarb atus sp.nov.,S,typica Hu,1996,S.capillaceus sp.nov.,S.umbellulata Hu,1996和水母状化石Taoyuania ovatoides gen.et sp.nov.,Liaonanella giganta sp.nov.,Wulingshania canopse gen.et sp.nov.及蠕虫状化石Wenshanwania simplex gen.et sp.nov.等。从地层对比上看,上述化石可能与伊迪卡拉动物群为同一时期的产物。晚震旦世晚期留茶坡组中类水母化石的出现是我国晚震旦世生物演化史上一次重要事件,以类水母等软躯体动物和高分异度的宏观藻类共同繁盛为特色的生物群与国内外同期地层中的已知生物群面貌不同,显示出一种新的伊迪卡拉庭园,为此,本文将棋其合名为武陵山生物群。  相似文献   

16.
A Taxanomic Study on Primitive EuconodontsWU Guichun, YAO Jianxin and JI Zhansheng(Institute of Geology, Chinese Academy of Geological Sciences,Beijing 100037)Primitive euconodonts are extrmely abundant and varied in the Late Cambrian in western Shandong Province. Two new genera are established, including Camconodontus gen. nov. and Laiwunodus gen. nov. Among them the following species are described: Camconodontus rotundatus gen. et sp. nov., Camconodontus sp., Laiwunodus lateronodus gen. et sp. nov., and  相似文献   

17.
A Taxanomic Study on Primitive EuconodontsWU Guichun, YAO Jianxin and JI Zhansheng(Institute of Geology, Chinese Academy of Geological Sciences,Beijing 100037)Primitive euconodonts are extrmely abundant and varied in the Late Cambrian in western Shandong Province. Two new genera are established, including Camconodontus gen. nov. and Laiwunodus gen. nov. Among them the following species are described: Camconodontus rotundatus gen. et sp. nov., Camconodontus sp., Laiwunodus lateronodus gen. et sp. nov., and  相似文献   

18.
铁法植物群产于辽宁北部铁法盆地下白垩统小明安碑组含煤地层中。该植物群由45属79种组成。真蕨是其中最繁盛的类别,计15属29种,占植物群种数的36.7%,并且有较高的分异度,覆盖了9个科别,在我国同期植物群中很有特色。本文在形态对比和原位孢子囊、孢子研究的基础上建立了Coniopteris longpinnate sp.nov.,Dryopterites triangularis sp.nov.,Asplenivm tiefanvm sp.nov.3个新种,还对保存了生殖羽片的其它8种真蕨作了原位孢子分析,大大提高了这些属种的研究程度。  相似文献   

19.
文中材料是采自西藏申扎县塔尔玛乡桥东-扎扛一带鹦鹉螺化石的一部分.描述了3属6种.其中有1个新属Variabioceras gen.nov.和3个新种V.typicum gen.et sp.nov.,V.zangbeiense gen.et sp.nov.,V.robustum gen.et sp.nov.  相似文献   

20.
A new genus with one new species and five new species of genus Amblomma of fossil ommatids are described and illustrated: Euryomma tylodes gen. et sp. nov., Amblomma cyclodonta sp. nov., Amblomma miniscula sp. nov., Amblomma porrecta sp. nov., Amblomma eumeura sp. nov., and Amblomma protensa sp. nov. All of them were collected from the Upper Jurassic or Lower Cretaceous Yixian Formation of western Liaoning, China. A key to the species of Amblomma is given. The wide epipleural space shows that Euryomma may be a primitive genus in Ommatidae. Many different species of Amblomma occurred within the same sedimentary horizon in this area could be environmental changes caused by frequent volcanic activities during the deposition of the Yixian Formation.  相似文献   

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