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1.
西藏南部白垩纪岗巴群的双壳类及其生物地理意义   总被引:1,自引:1,他引:0  
描述双壳类化石42种,建立10新种:Grammatodon(Nanonavis)minum sp.nov.,Propeamussium(P.)tibetensp ep.nov.,Plicatula himalayensis sp.nov.,Pseudolimea duodecicostata sp.nov.,Pycnodonte(Phygraea)gambaensis sp.nov.,Nototr  相似文献   

2.
苏皖象山群下部一些本内苏铁目铁化石的表皮构造研究   总被引:1,自引:1,他引:0  
曹正尧 《古生物学报》1998,37(3):283-294
报道象山群下部的本内苏铁植物5属6种:Tyrmia susongensis sp nov.Pterophyllum sp.1,P.SP.2,Anomozamites quadratus sp.nov.,Otozamites hsiangchiensis Sze,Nilsoniopteris vittata Florin,对其表皮构造进行了详细的描述。  相似文献   

3.
中国凹盾象属六新种记述(鞘翅目:象虫科)   总被引:2,自引:0,他引:2  
本文记述产于我国的凹盾象属Stenoscelis昆虫6新种,分别为赤杨凹盾象Stenoscelis(Hexastenoscelis)alni sp.nov.,圆窝凹盾象S.foveatus sp.nov.,齿突凹盾象S.acerbus sp.nov.,小点凹盾象S.puncticulatus sp.nov.,洼喙凹盾象S.recavus sp.nov.,和蔚县凹盾象S.yuxianensis sp  相似文献   

4.
本文记述栉眼蚤属中华栉眼蚤亚属Ctenophthalmus(Sinoctenophthalmus)HopkinsetRothschild,1966的三个新种:绩溪栉眼蚤,新种Ctenophthalmus(S.)jareisLietZeng,sp.nov,兴安栉眼蚤,新种Ctenophthalmus(S.)xinganensisLietXengsp.nov.和信宜栉眼蚤,新种Ctenophthalmus(S.)xinyiensisPanetLi,sp.nov.并对其宿主关系、地理分布以及分类特征之应用进行探讨。  相似文献   

5.
本文报道采自中国西部的冠网蝽属(StephanitisStal)3新种:祁连冠网蝽StephanitisqilianensisBusp.nov.,采自甘肃省天祝县乌鞘岭;萧氏冠网蝽StephanitishsiaoiBusp.nov.,采自四川省小金县和雅安县,曾被错误鉴定为“Stephanitisfasci-ica-rinaTakeya”(萧采瑜等,1981);狭冠网蝽StephnitisanagustataBusp.nov.采自甘肃省武都县和武威县。模式标本均保存在南开大学生物系昆虫标本室。  相似文献   

6.
本文记述栉眼蚤属中华栉眼蚤亚属Ctenophthalmus(Sinoctenophthalmus)Hopkins et Rothschild,1966的三个新种:绩溪栉眼蚤,新种Ctenophthalmus(S.)jixiensis Liet Zeng,sp.nov.,兴安栉眼蚤,新种Ctenophthalmus(S.)xinganensis Li et Zeng sp.nov.和信宜栉眼蚤,新  相似文献   

7.
中国枝背蚱亚科的新属和新种(直翅目:蚱科)   总被引:3,自引:2,他引:3  
本文报道采自四川和云南两省蚱科枝背蚱亚科2新属3新种,即蛾眉拟扁蚱Pseudogignotettix emeiensis sp.nov.,拟后蚱属Pseudepitettix gen.nov.,云南似后蚱P.yunnanensis sp.nov.,云南蚱属Yunnantettix gen.nov.,版纲云南蚱Y.banaensis sp.nov.。  相似文献   

8.
王耀 《古生物学报》1996,35(6):702-713
描述了豆海百合类2属7种,它们是:Pisocrinus(P.)pilula,P.(G.)kosovensis,P.(G.)bohemicus,Pampisocrinusollula,P.Sphericus,以及Pisocrinus(G.)brevissp.nov.和Parapisocrinuspateriformissp.nov.;并首次发现了P.(G.)bohemicus萼杯内腔的内部钙质骨胳构造。同时,还就波希米亚豆海百合种内变异和豆海百合类的对称性进行了研究。  相似文献   

9.
中国四川省有瓣蝇类三新种:双翅目:麻蝇总科,蝇总科   总被引:3,自引:0,他引:3  
冯炎 《昆虫分类学报》1999,21(2):138-142
本文报道四川省有瓣蝇类3新种,小口瘦粉蝇Dexopolleniaparviostiasp.nov(丽蝇科)齿腹粪蝇Scathophagaodontosternitasp.nov(粪蝇科),橙须重毫蝇Dichaetomyiapalpiaurantiacasp.nov(蝇科)模式标本存北京军事医学科学院医学昆虫标本馆。  相似文献   

10.
中国木叶蝉属四新种(同翅目:叶蝉科:殃叶蝉亚科)   总被引:1,自引:0,他引:1  
本文记述木叶蝉属Phlogotettix Ribaut4新种,即单斑木叶蝉P.monozoneus sp.nov.;赤褐木叶蝉P.lurdus sp.nov.;灰斑木叶蝉P.grimeus sp.nov.;西藏木叶蝉P.tibetensis sp.nov.。模式标本保存贵州农学院。  相似文献   

11.
A new subgenus of the genus Schizoprymnus Foerster is described and figured from Honshu, Japan. The subgenus, Ibarakius subgen. nov., comprises three species, S. (I.) gotoi sp. nov. (type species), S. (I.) kaizawus sp. nov., and S. (I.) honshuensis sp. nov. A pair of long, curved posteroventral processes on the carapace is unique to Ibarakius subgen. nov. The variability of frontal protuberances and sutures of the carapace in the brachistine genera Triaspis Haliday and Schizoprymnus Foerster is discussed.  相似文献   

12.
本文报道了陕西省南郑县梁山地区中奥陶统宝塔组介形类8属10种,其中包括3新属8新种。这些介形类化石的发现,为该时代地层的划分、对比增添了新的古生物依据。  相似文献   

13.
Neoselachian sharks and rays from the British Bathonian (Middle Jurassic)   总被引:2,自引:1,他引:1  
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.  相似文献   

14.
记述侧跗叶蜂属5新种:尖鞘侧跗叶蜂Siobla acutitheca sp.nov.,脊唇侧跗叶蜂S.carinoclypea sp.nov.,棒角侧跗叶蜂S.clavicornis sp.nov.,侧带侧跗叶蜂S.nigrolateralis sp.nov.,三斑侧跗叶蜂S.trimaculata sp.nov.。新种模式标本保存于湖南长沙中南林业科技大学昆虫模式标本室。  相似文献   

15.
The rich fauna of Late Devonian (Late Frasnian) siliceous sponges from the Holy Cross Mountains, Poland is composed of 15 species and 11 genera. Both astylospongid demosponges (lithistids) and hexactinosan hexactinellids are present. The following new genera and/or species are proposed: D regulara Rigby and Pisera sp. nov., Jazwicella media Rigby and Pisera gen. et sp. nov., Astyloscyphia irregularia Rigby and Pisera gen. et sp. nov., A. turbinata Rigby and Pisera gen. et sp. nov., Astylotuba modica Rigby and Pisera gen. et sp. nov., Paleoregulara cupula Rigby and Pisera gen. et sp. nov., Paleoramospongia bifurcata Rigby and Pisera gen. et sp. nov., Cordiospongia conica Rigby and Pisera gen. et sp. nov., Paleocraticularia elongata Rigby and Pisera gen. et sp. nov., P gigantia Rigby and Pisera gen. et sp. nov., Polonospongiadevonica Rigby and Pisera gen. et sp. nov., P fistulata Rigby and Pisera gen. et sp. nov., Urnospongia modica Rigby and Pisera gen. et sp. nov., and Conicospongia annulata Rigby and Pisera gen. et sp. nov. The investigated fauna contains the youngest astylospongiids known and the oldest well-preserved, and most diversified Palaeozoic hexactinosans. The sponge fauna constituted a significant element of a brachiopod-coral-sponge assemblage that inhabited a deep slope of the local Dyminy Reef structure, during its final phase of growth, in a clearly hemipelagic setting. This fauna is limited to the intrashelf depression within an incipiently drowned carbonate platform.  相似文献   

16.
Seven new species of Paramunnidae from the Magellan Strait are described, two of which are placed in new genera: Paramunna magellanensis sp. nov., P. menziesi sp. nov., P. parasimplex sp. nov., P. patagoniensis sp. nov., Allorostrata ovalis gen. et sp. nov., Austrosignum dentatum sp. nov., and Magellianira serrata gen. et. sp. nov. Four known paramunnid species from the same location are redescribed: Parammunna integra, P. simplex, P. subtriangulata and Munnogonium tillerae . While investigating the genus Paramunna , two species of this group, Acutomunna foliacea (Chardy, 1975) gen. nov. and Paramunna foresti Carvacho , 1977 were removed, which involved the erection of a new genus. The allocation of P. foresti remains uncertain. Some diagnostic characters of the Paramunnidae and a key to the Magellanic species of Paramunna are presented.  相似文献   

17.
中国东北晚侏罗世虻类化石(昆虫纲:双翅目)   总被引:5,自引:0,他引:5  
本文论述了辽宁西部上侏罗统虻类6个科的化石,包括1新科,10个新属和15个新种。其中Palaepangonius eupterus gen.et sp.nov.,Elpangonius pletus gen,et sp.nov.和Allomyia ruderalis gen.et sp.nov.均属于虻科(Tabanidae);Orsobrachyceron chinensis gen.et sp  相似文献   

18.
A new subgenus and species of the family Discohelicidae, Discohelix (Amerevohelix) alekseevi subgen. et sp. nov., from the clayey-carbonate beds of the Middle Callovian of the Moscow Region is described.  相似文献   

19.

Background

Lacewings (insect order Neuroptera), known in the fossil record since the Early Permian, were most diverse in the Mesozoic. A dramatic variety of forms ranged in that time from large butterfly-like Kalligrammatidae to minute two-winged Dipteromantispidae.

Principal Findings

We describe the intriguing new neuropteran family Parakseneuridae fam. nov. with three new genera and 15 new species from the Middle Jurassic of Daohugou (Inner Mongolia, China) and the Early/Middle Jurassic of Sai-Sagul (Kyrgyzstan): Parakseneura undula gen. et sp. nov., P. albomacula gen. et sp. nov., P. curvivenis gen. et sp. nov., P. nigromacula gen. et sp. nov., P. nigrolinea gen. et sp. nov., P. albadelta gen. et sp. nov., P. cavomaculata gen. et sp. nov., P. inflata gen. et sp. nov., P. metallica gen. et sp. nov., P. emarginata gen. et sp. nov., P. directa gen. et sp. nov., Pseudorapisma jurassicum gen. et sp. nov., P. angustipenne gen. et sp. nov., P. maculatum gen. et sp. nov. (Daohugou); Shuraboneura ovata gen. et sp. nov. (Sai-Sagul). The family comprises large neuropterans with most primitive wing venation in the order indicated by the presence of ScA and AA1+2, and the dichotomous branching of MP, CuA, CuP, AA3+4, AP1+2. The phylogenetic position of Parakseneuridae was investigated using a phylogenetic analysis of morphological scoring for 33 families of extinct and extant Neuropterida combined with DNA sequence data for representatives of all extant families. Parakseneuridae were recovered in a clade with Osmylopsychopidae, Prohemerobiidae, and Ithonidae.

Conclusions/Significance

The presence of the presumed AA1+2 in wings of Parakseneuridae is a unique plesiomorphic condition hitherto unknown in Neuropterida, the clade comprising Neuroptera, Megaloptera, Raphidioptera. The relative uncertainty of phylogenetic position of Parakseneuridae and the majority of other families of Neuroptera reflects deficient paleontological data, especially from critical important periods for the order, earliest Triassic and latest Triassic/earliest Jurassic.  相似文献   

20.
A new subfamily of ichneumonids, Palaeoichneumoninae, is described from the Lower Cretaceous of Transbaikalia (Baisa locality) and Mongolia (Bon Tsagan and Kholbotu Gol localities). The new subfamily is intermediate between the archaic subfamily Tanychorinae and the Recent Ichneumonidae. It includes 12 new species, described in three new genera: Palaeoichneumon freja gen. et sp. nov., P. ornatus sp. nov., P. danu sp. nov., P. micron sp. nov., P. mirabilis sp. nov., P. tenebrosus sp. nov., P. townesi sp. nov., Rudimentifera mora gen. et sp. nov., R. suspecta sp. nov., Dischysma maculata gen. et sp. nov., D. similis sp. nov., and D. ramulata sp. nov.  相似文献   

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