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1.
In this paper, five new pollen genera and twenty new pollen species of angiospermae from the Late Cretaceous of a certain basin in central China are described. Four new organ genera and their species include: Morinoipollenites normalis gen. et sp. nov., Morinoipollenites minor gen. et sp. nov., Morinoipollenites polyprojectus gen. et sp. nov., Morinoipollenites rhombiformis gen. et sp. nov., Jianghanpollis ringens gen. et sp. nov., Jianghanpollis, mikros gen. et sp. nov., Jianghanpollis radiatus gen. et sp. nov., Jianghanpollis sayangensis gen. et sp. nov., Jianghanpollis arciformis gen. et sp. nov., Myoporumpollonites variabilis gen. et sp. nov., Myoporumpollenites striatus gen. et sp. nov., Lythraites giganteus Yu, Guo et Mao gen. et sp. nov. Lythraites clavatus sp. nov., Lythraites dilutus sp. nov., Lythraites magnus sp. nov., Lythraites varrustriatus sp. nov., Lythraites pachyrrhachis sp. nov.; the new-form genus and its species are: Crassimarginpollenites reticulatus gen. et sp. nov., Crassimerginpollenites mirus gen. et sp. nov., Crassimarginpollenites psilatus gen. et sp. nov. The new pollen genera and their species described herein have been compared in some details with recent pollens and considered their affinity with such recent families as Dipsacaceae, Myoporaceae, Apocynaceae and Lythraceae. According to the age of the pollen-bearing strata, a preliminary discussion is made regarding to the taxonomy of the recent plants families with which our new described pollens are related. Hence, this study may provide some mieropalaeobotanical information for deciphering 'the phylogeny of these plants.  相似文献   

2.
Abstract: A rich, diverse Permian ostracod fauna has been recovered from the red and grey, laminated shales and quartz‐rich shales of the Triassic Lercara Formation. Forty‐seven species have been identified, 13 of which are newly described here; they belong to 26 genera of which three are new: Anahuacia lercaraensis sp. nov., Aurigerites siciliaensis sp. nov., Bairdia portellaensis sp. nov., Cristanaria? katyae sp. nov., Fabalicypris gruendeli sp. nov., Lethiersa salomonensis gen. et sp. nov., Lethiersia sinusoventralis gen. et sp. nov., Portella trapezoida gen. et sp. nov., Siciliella elongata gen. et sp. nov., Siciliella infernespinosa gen. et sp. nov., Siciliella prima gen. et sp. nov., Siciliella quadrata gen. et sp. nov., and Siciliella spinorobusta gen. et sp. nov. The assemblages contain or are composed of palaeopsychrospheric forms, which are regarded as index fossils for deep environments. The bathymetry of the different associations in life is evaluated.  相似文献   

3.
In Hal Nan Island, Lei Zhou Peninsula and some basins of Guang Dong Province Tertiary deposits are up to 5000 meters thick, contaning very rich pollen and spores. Palynological research has been going on since 1975. This paper is only dealing with some new pollen types and main palynofloristical characters. 4 new genera and 9 new species are described. They are: Trilobapollis gen. nov., Operculumpollis gen. nov., Utriculariapollis gen. nov. and Trilobapolliseptus gen. nov. et sp. nov., Trilobapollis ellipticus gen. nov. et sp. nov., Pilosipollis elegans gen. nov. et sp. nov., Oper culumpollis operculatus gen. nov. et sp. nov., Utriculariapollis tetratremites gen. nov. et sp. nov., Utriculariapollis tritremites gen. nov. et sp. nov., IlexpoUenites membranous sp. nov., Tricolpites tenuicolpus sp. nov., Vcrrutricolporites pachydermis.  相似文献   

4.
Nemerteans of the Great Barrier Reef 3. Anopla Heteronemertea (Lineidae)   总被引:3,自引:0,他引:3  
Nine species of lineid heteronemerteans are recorded from the Great Barrier Reef province of Australia. Six of these are new species, including four new genera, and are fully described and illustrated. These are Aetheorhynchus actites gen. et sp. nov. , Bennettiainsularis gen. et sp. nov., Cerebratulus magnetkus sp. nov., Colemania albulus gen. et sp. nov., Mkrura tridacnae sp. nov. and Quasilineus pulcherrimus gen. ct sp. nov. Lineus tricuspidatus (Quoy & Gaimard) is re-established, illustrated and described. Gorgonorhynchus repens Dakin & Fordham and Parborlasia hutchingsi Gibson have been fully described elsewhere, but a full list of known locations is provided.  相似文献   

5.
LATE PRECAMBRIAN TRACE FOSSILS FROM NEW SOUTH WALES   总被引:2,自引:0,他引:2  
Seven trace-fossil species are described from the upper part of the Torrowangee Group (Upper Proterozoic) of western New South Wales, and a variety of other traces are illustrated. A few forms occur in the Fowlers Gap Beds, and a more diverse and abundant fauna is recorded from the stratigraphically higher Lintiss Vale Beds. Virtually all the traces are preserved in the plane of bedding, as semi-reliefs. The named trace fossils all come from the Lintiss Vale Beds, and are as follows: Planolites ballandus sp. nov., Planolites? sp., Cochlichnus serpens sp. nov., Gordia? sp., Torrowangea rosei gen. et sp. nov., Phycodes? antecedent sp. nov., and Curvolithus? davidis sp. nov. Three of these species are regarded as feeding burrows (endogene), and are thought to represent the activity of infaunal, worm-like deposit feeders. Others may be either feeding burrows or crawling trails. There are also a few impressions which seem to be rest marks. A discussion of the significance of the trace-fossil occurrences is presented.  相似文献   

6.
辽西义县组长节锯蜂科(昆虫纲,膜翅目)昆虫化石   总被引:4,自引:0,他引:4  
描述产自辽宁西部北票上园地区和凌源大王杖子义县组长节锯蜂科(Xyelidae)巨长节锯蜂亚科(Macroxyelinae)昆虫化石12种,归于4族8属,其中6新属12新种,包括Angaridyela robusta sp.nov.,Angaridyela exculpta sp.nov.,Angaridyela suspecta sp.nov.,Angaridyela endemica sp.no  相似文献   

7.
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   

8.
中国内蒙古中侏罗世脉翅目昆虫化石—新科(英文)   总被引:1,自引:0,他引:1  
建立脉翅目昆虫化石新科———Grammolingiidaefamnov .,并描述该科化石 3新属 6新种 :Grammolingiaboigen .nov .ofsp .nov .,Litholingiarhoragen .nov .ofsp .nov .,Litholingiaeumorphagen .nov .ofsp .nov .,Litholing iapolychotomagen .nov .ofsp .nov .,Leptolingiajurassicagen .nov .ofsp .nov .,Leptolingiatianyiensisgen .nov .etsp .nov ..给出了新科的属级检索表 ,描述的所有模式标本均采自于内蒙古自治区宁城县中侏罗世九龙山组地层中。标本分别保存在义县博物馆和首都师范大学生物系。本次发现再次表明目前关于脉翅目昆虫的认识仍然十分贫乏。  相似文献   

9.
辽西义县组细蜂总科(昆虫纲,膜翅目)昆虫化石   总被引:4,自引:0,他引:4  
描述了产自辽宁北票上园地区黄半吉沟上株罗统义县组下部细蜂总科(Proctotrupoidea)昆虫化石10属12种,其中8属12新种,这些化石分属于3科,其中Gurvanotrupes stolidus sp.nov.,Gurvanotrupes exiguus sp.nov.,Liaoserphus perarus gen.et sp.no.,alloserphus saxosus gen.et sp.nov.,Scalprogaster fossilis gen.et sp.nov.,steleoserphus beipiaoensis gen.et sp.nov.,Saucrotrupes decorosus gen.et sp.nov和Ocnoserbphous sculptus gen.et sp.nov.归入细蜂科(Serphidae=Proctotrupidae);Protocyrtus validus sp.nov.和Spherogaster cornoata gen.et sp,nov。归入柄腹细蜂科(heloridae);Liaoropronia leonina gen.et sp.nov和Liaoropronia regia gen.et sp.nov.归入窄腹细蜂科(Roproniidae),对我们中生代细蜂总科化石的研究状况作了回顾。  相似文献   

10.
Abstract  A new family, Grammolingiidae of fossil lacewings is erected, of which 3 new genera and 6 new species are described and illustrated: Grammolingia boi . gen. nov. et sp. nov., Lithlingia rhra gen. nov. et sp. nov., Litholingia eumopha gen. nov. et sp. nov. and Litholingiu polychotom gen. nov. et sp. nov., Leptolingia jurassica gen. nov. et sp. nov. and Leptolingia tianyiensis gen. noc. et sp. nov. A key to genera within this new family is provided. All specimens described were collected from the Middle Jurassic Jiulongshan Formation of Eastern Inner Mongolia, China. The present discovery demonstrates that present knowledge of the Jurassic Neuropetra fauna remains very poor. The fossil specimens are deposited in Yizhou Fossil Museum and Department of Biology, Capital Normal University, respectively.  相似文献   

11.
本文描述古蝉科化石2新属、6新种,即Liaocossushuegen.etsp.nov.,L.beipiaoensisgen.etsp.nov,L.exiguusgen.etsp.nov,L.fengningensisgen.etsp.nov,L.Pingquanensisgen.etsp.nov.,Miracossusingentiusgen.etsp.nov.。这批化石保存有完整的虫体标本,使作者能够进一步研究古蝉类化石的虫体特征。化石采于冀北和辽西晚侏罗世义县组地层中,保存在中国地质博物馆。  相似文献   

12.
Abstract:  A diverse fauna of three-dimensionally preserved sponges is described from nearshore volcanogenic sandstones near Llandrindod, Mid-Wales. The fauna was preserved through early marginal silicification, in rare examples with silicification of soft tissue, and includes aspicular and spicular demosponges, hexactinellids, and a heteractinid. The fauna is largely endemic, with the following new species, genera and families erected: Onerosiconcha gregalia gen. et sp. nov., Ordinisabulo quadragintaforma gen. et sp. nov., Miritubus erinaceus gen. et sp. nov., Vadosifistula milvus gen. et sp. nov., Polycornua trescelestus gen. et sp. nov. (Pseudolanciculidae fam. nov.), P. entropus sp. nov., Palaeocallyoides improbabilis gen. et sp. nov., Reticulicymbalum tres gen. et sp. nov., Triactinella rigbyi gen. et sp. nov. (Triactinellidae, fam. nov.), Spissiparies minuta gen. nov., Brevicirrus arenaceus gen. et sp. nov., Pyritonema scopula sp. nov. (Pyritonemidae, fam. nov.) and Microastraeum tenuis gen. et sp. nov. In addition, Pseudolancicula Webby and Trotter is recorded outside Australia for the first time, although only as isolated spicules. The environment represented by this fauna has not previously yielded articulated sponges, and thus the apparent endemism may be misleading.  相似文献   

13.
Cuticles of two fossil cycads and seven epiphytic fungi are described in this paper. They are Nilssonia sinensis Yabe et Oishi, Ctenis lyrata Li et Ye; Perisporiacites shaheziensis sp. nov., Notothyrites haizhouensis sp. nov., Microthyriacites pilcatus sp. nov., M. fuxinensis sp. nov., Stigmateacites polymorphus gen. et sp. nov., S. simplex gen. et sp. nov., Liaoningnema multinoda gen. et sp. nov. Materials were collected from the Shahezi Formation of Changtu district and the Haizhou Formation in Haizhou mine-field of Li- aoning Province, China. The age of these tossils is Early Cretaceous.  相似文献   

14.
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   

15.
记述的菊石采自鄂东南大冶柯家湾晚二叠世大隆组,主要产于硅质页岩、硅质岩的灰岩透镜体中,共8属11种.此区大隆组仅相当于长兴阶的上部;Meitianoceras 在本区的出现,表明此属不仅分布于长兴阶的下部,也可延伸到长兴阶的上部.整个大隆组的化石,以自游生物为主,底栖类型很少.菊石中壳体大、壳面肋瘤发育者数量少,而壳饰弱、个体小者大量繁盛,呈现高丰度、低分异度的特点.保存化石的灰岩透镜体中具星散状的黄铁矿.本区晚二叠世晚期处于局部封闭的海湾环境.  相似文献   

16.
17.
A new subfamily of ichneumon wasps, Labenopimplinae subfam. nov. (Ichneumonidae), is described from the Cenomanian Ola Formation of the locality Obeshchayushchiy, Magadan Region, Russian Far East. The subfamily is highly diverse morphologically and combines characters of the Labeninae and Pimplinae. It includes 11 new species described in five new genera: Labenopimpla rasnitsyni gen. et sp. nov., L. kasparyani sp. nov., Armanopimpla zherikhini gen. et sp. nov, Ramulimonstrum intermedium gen. et sp. nov., Rugopimpla vulgaris gen. et sp. nov., R. fallax sp. nov., R. angusticella sp. nov., R. macra sp. nov., R. matrona sp. nov., Micropimpla lucida gen. et sp. nov., and M. obscura sp. nov. Also described is a new monotypic genus, Tryphopimpla xoridoptera gen. et sp. nov., which combines characters of the Tryphoninae, Pimplinae, and Xoridinae and cannot be currently placed into any of the known subfamilies. The population of fossil ichneumon wasps at this locality is distinctly dominated by females.  相似文献   

18.
The problematic lizard family Changjiangosauridae, representatives of which inhabited Asia in the Early Paleogene, is discussed. Six new species of this group, including Acrodontopsis robustus gen. et sp. nov., Agamimus gracilis gen. et sp. nov., Graminisaurus interruptus gen. et sp. nov., Khaichinsaurus reshetovi gen. et sp. nov., Lavatisaurus elegans gen. et sp. nov., and Lentisaurus giganteus gen. et sp. nov., from the Middle Eocene of the Khaichin Uul 2 locality (southern Gobi, Mongolia) are described. It is shown that Changjiangosauridae are probably related to the Late Cretaceous Isodontosauridae and recent Uromastycidae; independent development of a number of dental features in different lineages of Acrodonta (Iguania) is corroborated.  相似文献   

19.
OCTOCORALLIAN AND HYDROID FOSSILS FROM THE LOWER ORDOVICIAN OF WALES   总被引:1,自引:1,他引:0  
Abstract:  Octocorallian and hydroid fossils are described from the Lower Ordovician (Arenig Series) of Wales. They include gorgoniids that are the earliest known fossils of this group: Petilavenula varifurcata gen. et sp. nov. and P. surculosa gen. et sp. nov. Pennalina crossi gen. et sp. nov. is probably also a gorgoniid but may be a hydroid. A new hydroid, Pontifennia gracilis gen. et sp. nov., is also described.  相似文献   

20.
Abstract: Palaeoscolecidan worms are rare, Early Palaeozoic fossils with uncertain affinities within the Ecdysozoa. They are locally abundant in the Cambrian and scattered in the Early Ordovician, but very sparse thereafter. Forty‐four specimens have been collected from the Middle Ordovician of the Builth‐Llandrindod Inlier of Mid Wales and include well‐preserved material assigned to seven new genera, with four additional species in open nomenclature. An additional specimen from the Arenig Pontyfenni Formation of South Wales is also described in open nomenclature. The total demonstrates much greater palaeoscolecid diversity than hitherto suspected for this time. The specimens are preserved as cuticle fragments in shales and siltstones, often of submillimetre size but in many cases with excellent preservation. The level of detail preserved in some is equal to that found in Cambrian phosphatized faunas. The new approach to collecting, and the recognition that this material can yield taxonomically useful information, opens new avenues for palaeoscolecidan research in siliciclastic environments. The new taxa are the following: Radnorscolex bwlchi gen. et sp. nov., Aggerscolex murchisoni gen. et sp. nov., Bullascolex inserere gen. et sp. nov., Wernia eximia gen. et sp. nov., Ulexiscolex ormrodi gen. et sp. nov., Pluoscolex linearis gen. et sp. nov. and Loriciscolex cuspidus gen. et sp. nov. The high diversity, and the taxonomic separation from known groups described primarily from Cambrian carbonates, implies that palaeoscolecidans either diversified significantly during the Ordovician or were taxonomically segregated between carbonate and siliciclastic settings. Palaeobiological findings also include confirmation that some palaeoscolecid basal cuticles were solid and others reticulate, plates (and platelets) could form by lateral accretion, plates were in part primarily phosphatic and in part organic and that in at least some groups, platelet secretion occurred external to plate secretion.  相似文献   

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