中国海相早三叠世弓鲛鱼类(软骨鱼类)的首次报道——华南二叠系一三叠系界线上下鱼类序列研究之一

广西田东县作登下三叠统罗楼组产出弓鲛鱼类作登弓鲛Hybodus zuodengensis(Yang et al.)、乐氏弓鲛H.yohi(Yang et al.)和田东多尖齿鱼(新种)Polyacrodus tiandongensis sp.nov.,其中前二种化石以前曾被作为牙形类报道.这是弓鲛鱼类在中国海相早三叠世的首次报道.另外,本组还产出属种未定的硬骨鱼类化石(Osteichthyes gen.et sp.indet.).建立了我国海相早三叠世第一个鱼类带化石,作登弓鲛-乐氏弓鲛组合带(Hybodus zuodengensisH.yhoi AZ);伴生的有Neospathodushomeri-N.triangularis牙形类带化石,该带化石延续的时限为奥伦尼克阶(Olenekian)司帕斯期(Spathian)早期.     

中国海相早三叠世弓鲛鱼类(软骨鱼类)的首次报道——华南二叠系—三叠系界线上下鱼类序列研究之一

广西田东县作登下三叠统罗楼组产出弓鲛鱼类 :作登弓鲛Hyboduszuodengensis(Yangetal.)、乐氏弓鲛H .yohi (Yangetal.)和田东多尖齿鱼 (新种 )Polyacrodustiandongensissp .nov .,其中前二种化石以前曾被作为牙形类报道。这是弓鲛鱼类在中国海相早三叠世的首次报道。另外 ,本组还产出属种未定的硬骨鱼类化石 (Osteichthyesgen .etsp .indet.)。建立了我国海相早三叠世第一个鱼类带化石 ,作登弓鲛—乐氏弓鲛组合带 (Hyboduszuodengensis H .yohiAZ) ;伴生的有Neospathodushomeri N .triangularis牙形类带化石 ,该带化石延续的时限为奥伦尼克阶 (Olenekian)司帕斯期 (Spathian)早期。     

贵州兴义发现最原始弓鳍鱼

记述在贵州兴义著名的贵州龙化石层（上三叠统卡尼介）中发现的最原始弓鳍鱼而建立了一新属新种－优美贵州弓鳍鱼（Guizhouamia bellula gen.et sp.nov.)。     

浙江和江西二叠/三叠系界线以下的软骨鱼类微体化石——华南二叠/三叠系界线上下鱼类序列研究之五

记述了浙江长兴县煤山剖面、江西修水县四都乡东岭剖面和信丰县铁石口镇铁石口剖面二叠/三叠系界线以下的软骨鱼类10个类别的微体化石,包含5科6属5种,其中有3新属5新种,它们是:刘氏煤山鲨(Meishanselache liuigen.et sp.nov.)、王氏长兴鲨(Changxingsela-che wangigen.et sp.nov.)、东岭中华尖齿鲨(Sinacrodus donglingensis gen.et sp.nov.)、修水滑齿鲨(Lissodus xiushuiensis sp.nov.)和江西多尖齿鲨(Polyacrodus jiangxiensis sp.nov.)。浙、赣两省的这批软骨鱼类微体化石显示两个特点:组成以弓鲛超科化石为主;发现于特提斯区三叠纪的鲨类与发现于中国南方晚二叠世的鲨类具有密切的亲缘关系。这是包含全球二叠/三叠系界线层型剖面和点位(GSSP)在内的全球二叠/三叠系界线以下软骨鱼类微体化石序列的首次报道。软骨鱼类是我国鱼类化石研究中最为薄弱的一个环节,本文化石的记述大大地填补了这个薄弱环节。     

记陕西蓝田晚中新世灞河组4种跳鼠(Dipodidae,Rodentia)化石

描述了陕西蓝田晚中新世早期灞河组的4属4种跳鼠:蓝田原跳鼠(新种)(Protalacta- ga lantianensis sp.nov.)、副跳鼠(未定种)(Paralactaga sp.)、原始三趾心颅跳鼠(新种)(Sal- pingotus primitivus sp.nov.)和小五趾心颅跳鼠(新种)(Cardiocranius pusillus sp.nov.)。蓝田原跳鼠兼有原跳鼠和副跳鼠的特征,可能是原跳鼠向副跳鼠进化过程中产生的一种过渡类型。副跳鼠和原始三趾心颅跳鼠及小五趾心颅跳鼠分别代表了副跳鼠属在中国的最早记录和心颅跳鼠亚科(Cardiocraniinae)在地史上的首次出现。4种跳鼠指示了蓝田地区当时的自然环境可能比现代更加干旱。     

广东早石炭世植物化石新资料及其组合序列

广东早石炭世地层中植物化石丰富,本文报道19属41种,描述了10个新种,即:翁潭亚鳞木(Sublepidodendron wengtanense sp.nov.)、槐角鳞木(Lepidodendron sophoroides sp.nov.)、连平拟铁线蕨(Adiantites lianpingensis sp.nov.)、马头拟铁线蕨(A.matouensis sp.nov.)、韶关老羊齿(Archaeopteridium shaoguanense sp.nov.)、细扇羊齿(Rhacoptcris angustasp.nov.)、披针拟须羊齿(Rhodeites lanceolata sp.nov.)、韶关脉羊齿(Neuropteris shaoguanensis sp.nov.)、总状笠囊(Potoniea racemicarpa sp.nov.)和陀螺笠囊(P.turbinata sp.nov.)。根据这些化石在剖面中的分布情况,自下而上可分为三个植物组合:1.奇异亚鳞木(Sublepidodendron mirabile)组合,代表沉积为大湖组。2.多形铲羊齿(Cardiopteridium spetsbergense)-高氏拟铁线蕨(Adiantites gothanii)组合,代表沉积为测水组下段。3.老羊齿(Archaeopter-idium)-钝楔羊齿(Sphenopteris obtusiloba)组合,代表沉积为测水组上段(粤西北)或忠信组中段(粤东)。     

陕西省山阳县晚奥陶世Agetolites属之新种

本文共描述下列六海百合三个种,其中二个是新种:1.俞氏六海百合(新种)Hexacrinites yui Xǔ(sp.nov.)2.穆氏六海百合(新种)Hexacrinites mui Xǔ(sp.nov.)3.浮雕六海百合星点变种H.anaglypticus var.stellaris(Goldfuss)上列三种六海百合,每种仅有一个标本。其中Hexacrinites yui 为很早以前俞建章教授在广西象州县热水塘所采,后由张文堂先生交穆恩之教授鉴定为Hexacrinites sp.。其余两种为俞昌民、施从广、方大卫、董得源等同志于1961年在测制广西象州县附近东岗岭中泥盆统剖面时所采得的。     

内蒙古中生代锹甲化石(鞘翅目:金龟子总科:锹甲科)

文中记述内蒙古赤峰地区中生代锹甲化石2新属4新种.道虎沟中侏罗统的Juraesalus atavus gen.et sp.nov.是最古老的金龟总科化石.其余3种,Sinaesalus longipes gen.et sp.nov.,S.curvipes gen.et sp.nov.和S.tenuipes gen.et...     

棒孢菌属四个新种

本文报道了棒孢菌属四个新种,即女贞棒孢(Corynespora ligustri Guo,sp.nov.),茉栾藤棒孢(C.merremiae Guo,sp.nov.)鸡血藤棒孢(C.millettiae Guo sp.nov.)和蔓荆子棒孢(C.viticis Guo,sp.nov.)。文中对各个新种作了汉文描述和附图,并有拉丁文描述和特征简介。模式标本收藏于中国科学院微生物研究所真菌标本室。     

湖北神农架缺脉舞虻亚属五新种(双翅目,舞虻科)(英文)

记述湖北神农架缺脉舞虻亚属Coptophlebia 5新种,即端鬃缺脉舞虻Empis (Coptophlebia) apiciseta sp. nov.,基黄缺脉舞虻E. (C.) basiflava sp. nov.,指突缺脉舞虻E. (C.)digitata sp. nov.,白毛缺脉舞虻E. (C.) pallipilosa sp. nov.,后鬃缺脉舞虻E. (C.) posticasp. nov.。     

Neoselachian sharks and rays from the British Bathonian (Middle Jurassic)

Extensive sampling of Bathonian sediments from localities across southern and central England has produced over 8000 neoselachian teeth. These comprise diverse faunas, with over 25 species being represented in total, most of them previously undescribed. Seventeen new species and seven new genera are named: Palaeoscyllium tenuidens sp. nov., Praeproscyllium oxoniensis gen. et sp. nov., Eypea leesi gen. et sp. nov., Proheterodontus sylvestris gen. et sp. nov., Paracestracion bellis sp. nov., Palaeobrachaelurus mussetti sp. nov., Heterophorcynus microdon gen. et sp. nov., Dorsetoscyllium terraefullonicum gen. et sp. nov., Ornatoscyllium freemani gen. et sp. nov., Pseudonotidanus semirugosus gen. et sp. nov., Synechodus duffini sp. nov., Protospinax magnus sp. nov., P. bilobatus sp. nov., P. carvalhoi sp. nov., Belemnobatis kermacki sp. nov., B. stahli sp. nov. and Spathobatis delsatei sp. nov. In addition, a new family, the Pseudonotidanidae fam. nov., is defined and the status of Paranotidanus Ward and Thies, 1987, Hybodus levis Woodward, 1889 and Breviacanthus brevis (Phillips, 1871) are discussed. These taxa show strong facies specificity, with different species being restricted to different palaeoenvironments.     

北京西山石炭-二叠系蜚蠊类化石的发现兼论北京地区昆虫化石的时代

报道产于北京西山门头沟区色树坟石炭-二叠系太原组的一块蜚蠊类前翅化石,可归入Phyloblatta,代表一新种Phyloblatta beijingensis sp. nov.,以狭小的爪区别于该属其他已知种类。Phyloblatta蜚蠊类在我国山西省下二叠统山西组曾发现多种类型。对北京地区以前报道的昆虫化石所属时代和地层均进行厘定,如土城子组、大灰厂组、夏庄组的昆虫化石。     

OSTRACODS AS MARKERS OF THE PERMIAN/TRIASSIC BOUNDARY IN THE KHUFF FORMATION OF SAUDI ARABIA

Abstract:  Ostracods are described for the first time from Permian–Triassic shallow marine sediments of the Khuff Formation of central Saudi Arabia. They were collected using a modified acetolysis technique for releasing calcareous shells from limestones that is described herein. Thirty-four species belonging to 17 genera are recognized. Two new species are described: Arqoviella arabica sp. nov. and A. khartamensis sp. nov. The ostracod fauna supports a Late Permian age for the lower Khartam Member and a probable Early Triassic age for the upper Khartam Member of the Khuff Formation of central Saudi Arabia. This suggests that the Permian/Triassic boundary is located within the Khartam Member, rather than at the major lithological break between the Midhnab and Khartam members. Palaeoecological analysis suggests that the palaeoenvironment of the Khuff Formation was shallow marine (between 1 and 50 m deep) on an internal shelf.     

New species of Lenticulina (Foraminifera) from the Upper Triassic of Kotelnyi Island,New Siberian Islands,Russia

Late Triassic foraminifers of Kotelnyi Island (New Siberian Islands) are studied. Four new lenticuline species (Lenticulina kotelnensis sp. nov., L. triassica sp. nov., L. septentrionalis sp. nov., and L. sakhaensis sp. nov.) are described. Their distribution in the Upper Triassic deposits of Kotelnyi Island is discussed.     

New tanystropheids (Reptilia: Archosauromorpha) from the Triassic of Europe

A new prolacertilian species and genus, Augustaburiania vatagini gen. et sp. nov. (Reptilia: Archosauromorpha), from the Lower Triassic of the Don River Basin is described. It is the first representative of the Tanystropheidae in the Eastern Europe and the world oldest member of this family. Another new genus (Protanystropheus gen. nov.) from Central and Western Europe is also established. The diversity, systematics, phylogeny, evolution, and stratigraphic and geographical distribution of prolacertilians are discussed. The ecological role of prolacertilians in Early Triassic communities and adaptation to marine environments are analyzed.     

The Discovery of Microflora from the Maantang Formation in the North-West Sichuan Basin and Its Significance

In this article a microflora discovered in the marine sediment of early Late Triassic at the North-West Sichuan Basin has been described. The samples studied were collected in 1974–1976 from Maantang Formation near Maantang Railway Station in Jiangyou Xian of Sichuan Sheng. Co existing with the microflora found abundant invertebrate fauna of Canic stage, such as Ammonites, matinc Bivalves, Foraminifera, Conodonts. This microflora is characterized by the peculiar zonate spores and numerous acritarchs, including 33 genera and 57 species, among which 4 genera and 20 species are new. The spores are characterized by the abundance of Dictyophyllidites, by the diminution of the zonate spores which are Corollisporites (gen. nov.), Bulbisporites (gen. nov.), Habrozonosporites (gen. nov.), and Compactisporites (gen. nov.), and by the presence of Marattisporites, Annulispora, Lycopodiaciditcs, Zebrasporitcs, Kraeuse- lisporites. The pollen grains are characterized by the abundance of Granosaccus, Verrusaccus Ricciisporites, Taeniaesporites, and by the presence of Ovalipollis, Luecki-sporitcs, Protohaploxypinus. The acritarchs are characterized by the abundance of Micrhystridium, by the diminution of Baltisphaeridium, Veryhachium, Lciopsopho-sphaera. Based on the assemblage feature shown in present microflora samples and associated occurrence of the marine invertebrate fauna (Protrachyceras sp., Buchites sp., Kumatrigonia sp., Halobia austriaca, H. rugosa, Aulotortus bronimanni, Trocholina acuta, Neogondolella polygnatiformis, etc.) the age of Maantang microflora may be considered as early Late Triassic.     

山西轮藻属新植物

本文报道采自山西省的轮藻属植物2个新种,运城轮藻Chara yunchengensis,拟灰色轮藻C.pseudocanescens和3个中国新记录,阿尔泰轮藻C.altaica,豪威轮藻C.howeana,味美轮藻簇毛变种C.delicatula var.barbata     

甘肃天祝松山第二地点中上新世小哺乳动物

<正> 1980年夏作者在甘肃天祝藏族自治县松山公社处理人民来信过程中,在80007地点采得几块含化石骨片的红粘土结核标本。这些标本经室内水洗,从中获得一些零星但相当有意义的小哺乳动物化石材料。这些化石的发现不但对于早先记述的80006地点的小哺乳动物群作了进一步的充实,而且对更深入认识中国北方三趾马动物群也有一定的意义。