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1.
Elena Nikulina 《Geobios》2010,43(2):219
Post-Cretaceous examples of Electridae, a primitive family of cheilostome bryozoans, are poorly represented in the fossil record, probably because of their thinly calcified zooids and preference for nearshore environments. Two new electrid species are here described from the Lower Miocene (Burdigalian) of Pontpourquey, Aquitaine, France: Electra triaurata nov. sp. and Electra aquitanica nov. sp. Both species belong to extant species groups, the E. indica and E. biscuta groups, respectively, that presently occur in the Indo-Pacific; both are the only fossil examples of these species groups. Whereas E. triaurata nov. sp. has uniserial colonies, zooids with porous gymnocysts, three flattened spines and basal windows allowing etching of the substrate to produce the trace fossil Leptichnus, E. aquitanica nov. sp. has multiserial colonies and zooids with a proximal gymnocyst bearing 2 to 5 spines. 相似文献
2.
New rhinocerotid teeth from Laogou in Hezheng (Gansu, China) are described and identified as Hispanotherium matritense. Comparing the other Chinese Middle Miocene elasmotheres with material of H. matritense from Iberian localities and Laogou, we confirm the synonymy proposed previously for the species Hispanotherium lintungensis, Tesselodon fangxianensis, Caementodon tongxinensis and Huaqingtherium qiui. The larger size of Hispanotherium tungurense proves that it is a different species from H. matritense. The age of Laogou fauna corresponds to MN6. Paleoenvironments of H. matritense in China include rivers and lakes, which are somewhat different from the arid environment in the Iberian Peninsula. The origin of the Hispanotherium lineage may be in southwestern Europe. After that, it dispersed eastward to Asia. 相似文献
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《Journal of Asia》2021,24(3):629-635
In this paper, one new species of the leafhopper genus Thaioneura Song, Li & Dietrich, 2016 from Guizhou Province, China are described and illustrated: Thaioneura huajiangensis sp. nov. And the female ovipositors are photographed and described. A key to distinguish all known species of the genus is provided. The hind wing venation of the new species are the same as the T. suphanburia and T. sinuata, and not common in the tribe Erythroneurini. 相似文献
4.
Zhen-Yu Lv Ziyoviddin Yusupov Dai-Gui Zhang Ya-Zhou Zhang Xiao-Shuang Zhang Nan Lin Komiljon Tojibaev Hang Sun Tao Deng 《Plant Diversity》2022,44(2):222-230
A new species,Oreocharis xieyongii T.Deng,D.G.Zhang & H.Sun,from Hunan Province,central China,is described.The combination of purple zygomorphic corolla with longer adaxial lobes and exserted stamens defines the species and discriminates it from all other current Oreocharis species.Morphological traits of the new species were compared to those of two similar species,Oreocharis xiangguiensis and 0.rubrostriata.Phylogenetic analysis indicates that the new species is nested within the Oreochari... 相似文献
5.
多鳃鱼类一新属及该类鱼感觉沟系统的变异 总被引：1，自引：2，他引：1
本文记述了云南曲靖早泥盆世翠峰山组西山村段多鳃鱼类一新属种,变异坝鱼(Damaspis vartus gen.et sp.nov.)文中讨论了多鳃鱼类头甲背部感觉沟系统的基本模式,它的变化和变异。从这个基本模式出发笔者认为三岔鱼科和多鳃鱼科有许多重要的特征相近,似乎应把三岔鱼科和多鳃鱼科隶属于同一个高一级的分类单元即多鳃鱼目,而不应把三岔鱼科置于“华南鱼目”。“华南鱼目”是根据了解还不多的华南鱼属建立的,有些勉强,建议暂不采用。文中首次指出多鳃鱼类的感觉沟系统存在变异现象并认为在确立新类型时,变异是应该考虑的一个重要因素。 相似文献
6.
LARS WERDELIN F.L.S. 《Zoological Journal of the Linnean Society》1988,93(2):93-105
Samples of the Miocene hyaenid Ictitherium from China and Pikermi, Greece, are analysed statistically. Ictitherium viverrinum Roth & Wagner, 1854 and Ictitherium gaudryi Zdansky, 1924, are found to be conspecific. Ictitherium sinense Zdansky, 1924 is also reduced to synonymy with Ictitherium viverrinum. Ictitherium kurteni sp. nov. differs from 1. viverrinum particularly in its large Cs and large and broad P3 . 相似文献
7.
《Mycoscience》2014,55(2):124-126
A new species of the monotypic genus Pseudohypocrea is described based on a collection from Tai Po Kau, Hong Kong, China. The fungus is characterized by globose to subglobose perithecia entirely immersed in a pulvinate reddish-brown stroma, cylindrical asci with smooth-walled and lemon-shaped part-ascospores, and occurring on dead leaves. Morphological features of the new species are described and compared with the only known species of the genus.poi 相似文献
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《Saudi Journal of Biological Sciences》2016,23(5):592-597
A new species of Venturia (V. chinensis) is described and illustrated from the leaves of Lonicera praeflorens collected from Lesser Khingan Mountains, the northeast China. It is characterized by habitat saprobic; ascomata small-sized, solitary or scattered, superficial, subglobose to citriform, wall black, papillate, ostiolate, covered with setae; peridium thin; hamathecium evanescent in mature ascomata; asci 8-spored, bitunicate, fissitunicate, oblong to obclavate, with or without a short, knob-like pedicel; ascospores ellipsoidal, olivaceous pale brown, 1-septate, ascospore wall thin, smooth. Comparisons of V. chinensis with V. lonicerae (another species on Lonicera caerulea) and other species of Venturia lead to the conclusion that collected taxon is new. Its relationships with other species of Venturia are discussed based on morphology and 28S nrDNA and ITS nrDNA sequence comparisons. 相似文献
10.
Today southern Yunnan, SW China, has a tropical or subtropical climate and seasonal rainforests. In the past, some temperate elements were also present. In this paper, a new species of Populus is reported from the Middle Miocene deposits in Zhenyuan. Its leaves are ovate or ovate-suborbicular, with serrate margins. They have a shallowly cordate to cuneate base without glands, short acuminate apex, and salicoid teeth with spherical glands. The veins are glabrous but unicellular hair bases occur on the lower epidermis of the lamina. Stomata are confined to the lower epidermis. The presence of Populus in the Middle Miocene of the region indicates an expansion of the genus into low-latitude Asia in the late Cenozoic and a more complicated history of vegetational change in southern Yunnan than has so far been assumed. 相似文献
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本文对分布于广东省深圳市深圳湾体育中心海边(22°30'58″N,113°56'1″E)的一种褐绿色涡虫的形态、发育、行为等做了详细观测,并对其进行了分类学与动物地理方面的讨论。结果表明,此涡虫表皮内具共生的虫黄藻(Zooxanthella microadriatica),另具菌丝状分布的棕色颗粒。头部钝圆,具1对米粒状棕色眼点和1个平衡囊。尾后两侧具2条并列的尾垂,其形状和大小与涡虫尾部的舒展状态相关。雌雄同体,生殖孔2个,位于口后,雌孔在前,雄孔在后。卵巢、精巢成双,分别位于腹侧与背侧。受精囊呈哑铃型,囊内具2~12根囊管。阴道呈倒\"T\"形,其表皮由柱状细胞构成。精巢内精子集聚成束,向体后两侧延伸成假储精囊,汇入储精囊。储精囊环抱阴茎球。涡虫利用纤毛的摆动在水底滑动,或利用两侧身体的摆动呈蝶状游泳。喜捕食微型涡虫与轮虫,人工饲养可摄食水蚤或水溞。经比较,鉴定为无肠目盘旋科(Convolutidae)异尾属(Heterochaerus)澳洲异尾涡虫(H.australis Haswell,1905),属中国涡虫1新纪录目1新纪录种。 相似文献
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《Mycoscience》2014,55(3):227-230
Chlorencoelia collections from different regions of China were examined. A new species is discovered and named as C. macrospora. The most significant features to distinguish the new species from any other known species of the genus are its very large acsi and ascospores. Three of the five known species of the genus are found from China. 相似文献
14.
Maria Gallo D&#x;Addabbo Roberto Sandulli Susanna de Zio Grimaldi 《Zoologischer Anzeiger》2005,243(4):219-225
A new species of Batillipedidae, Batillipes spinicauda, has been found in subtidal sand sediments collected in Orosei Gulf (Sardinia, Tyrrhenian Sea). The most important peculiarities of the new species are the shape of the primary clavae, lateral processes and caudal apparatus. In the same samples, B. littoralis Renaud-Debyser, 1959 and Orzeliscus belopus Du Bois-Reymond Marcus, 1952 were found. 相似文献
15.
LARS WERDELIN F.L.S. 《Zoological Journal of the Linnean Society》1988,92(3):211-265
Samples of the Chinese upper Mioeene hyaenids Thalassictis wongii (Zdansky), Thalassictis hyaenoides (Zdansky) and Palinhyaena reperta Qiu, Huang & Guo are analysed and characterized statistically. The generic and specific designations above are considered correct. Using these samples as a basis, the taxonomic status of similar forms from Eurasia is evaluated. Lycyaena is considered a subgenus of Thalassictis and includes the species T. (L.) dubia (Zdansky), T. (L.) chaeretis (Gaudry), T. (L.) macrostoma (Lydekker), and T. (L.) crusafonti (Kurtén). 'Lycyaena' proava Pilgrim and 'L.' chinjiensis Pilgrim are removed from this subgenus. The type specimen of Palhyaena hipparionum (Gervais) is missing and cannot be determined to genus on the basis of published information. Most other forms are referred to Thalassictis (Thalassictis) , except 'Ictitherium' sivalense Lydekker, which is considered to be closely related to Palinhyaena . 相似文献
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Qiu Zhanxiang 《人类学学报》1986,5(03):201
The subject of the present paper, a left M2 of Pliopithecus, BPV 261 (housed in Beijing Natural History Museum) , was purchased, purely by chance, in the early spring of 1985 from a \"dragon-bone\" digger in situ, where he had successfully found teeth and bones of Platybclodon, Listriodon and Stephanocemas. The locality, called Maerzuizigou, lies near the village Dingjiaergou, which is 18 km northeast to Tongxin, the county center. Its geographie position is indicated in text-figure 1.<br>From the same locality, and chiefly frorn the surrounding area, more materials were collected by the field parties of both the Institute of Vertebrate Paleontology and Paleoanthropology and Beijing Natural History Museum during the last several years. Although the study of the materials is still under way and the geological setting of the area concerned is still being prepared, the geological age of the area in general is clear: It is a little older than the typical Tung-gur faunal age, probably comparable to MN 6 or 7 in the European mammalian biochronology.<br>During the first half of the present century there were some reports on the possible oceurrence of pliopithecine material in North China. Schlosser (1924) first reported an M3 under the name of Pliopithecus posthumus. However, the tooth is too heavily worn to warrant its taxonomic position as proposed by M. Sehlosser. Recently Ginsburg and Mein (1980) proposed to refer it to a gibbon genus: Krishnapithecus. Later Bohlin (1946) deseribed some very badly preserved specimens and erected for them a new genus, Kansupithecus (without designation of species) , allegedly belonging to the pliopithecine group. Because of their poor state of preservation (a practically edentulous lower jaw fragment and some tooth splits) , again, their true nature is uncertain. Szalay and Delson (1979) provisionally referred them to tPliopithecidae incerta sedis. The Tongxin material, though consisting of only one tooth, represents therefore the first authentie record of the genus in China. In addition, the preservation of the tooth is excellent, the erown features are all clearly demonstrated.<br>A cursory comparison is enough to reveal that our Tongxin specimen conforms very well with Hürzeler’s diagrammatie presentation of the pliopithecine lower molars based on G?riach material (Hürzeler, 1954, fig. 14) . The features our M2 has in common with Hürzeler’s diagram are the following: 1. The labial wall of the tooth is marked'y slan- ting, so that the labial eusps approximate the lingual ones strongly at the top of the erown. 2. The trigonid is large. basin-shaped. and blocked posteriorly by a well develop- ed metalophid. 3. The talonid eonsists of three cusps: hypoconid, entoconid and hypoco- nulid, without indication of the sixth cusp. 4. The distance between the hypo- and entoconid is longer than that between the proto- and metaconid. 5. The metastylid is tiny, but still discernible. 6. There is a \"hinter Hauptleiste\" (Remane's term) connecting the hypoeonulid and entoconid. 7. There is a \"pliopithecine triangle\", which is typical for all the members of the group. 8. There is a weak connection between the hypoconid and metaconid on the bottom of the talonid. 9. The labial eingulum is well developed, interrupted only at the midpoint. The enumeration of these characters in common leaves no room for doubt that the Tongxin specimen should refer to the genus Pliopithecus.<br>The systematies of the pliopithecine group in now rather complicated. Ginshurg and Mein (1980) proposed to split Pliopithecidae into two subfamilies: Crouzelinae and Pliopithecinae. However, Szalay and Delson (1979) already seriously doubted the validily of the genus Crouzelia, which served the base for Ginsburg and Mein's separation of the subfamily Crouzelinae, based chiefly on the assumption that Crouzelia was based on wrong identification of the deciduous teeth as permanent ones. The careful observation of the cast of the type speeimen shows that the original teeth identification was correct, therefore Ginsburg and Mein's subdivision of the family Pliopithecidae is to be considered tenable. Our speeimen from Tongxin should obviously be exeluded from the subfamily Crouzelinae, which is characterized by the lophodont tendeney of the main cusps, reduction of the entoconid and hypoconulid and less developed cingulum. According to Ginsburg and Mein, Pliopithecinae consists of only one genus and three species: Pliopithecus piveteaui, P. antiquus and P. vindobonensis. The Tongxin specimen is evidently closest to the later speeies in both morphology and size. Nevertheless, they differ still considerably: 1. The Tongxin specimen is even larger in size than that in the iater species. In fact our specimen represents the largest individual ever found for the genus Pliopithecus (see table 1) . 2. The secondary structures on the erown surface of the Tongxin specimen are rieher developed. 3. The \"pliopithecine triangle\"is still not completely closed in our specimen.<br>Our new specimen may well represent a new species of the genus, but the paueity of the material made us hesitating in doing so. 相似文献
18.
宁夏同心发现的一颗上猿牙齿 总被引：10，自引：1，他引：10
本文记述了采自宁夏同心地区中中新世(相当于通古尔早期)地层中一颗上猿的左下第二臼齿。它的齿冠形态和Hurzeler(1954)以Goriach地点为基础所总结出的上猿下臼齿的“模式”形态基本一致,而和其它几个在形态上比较接近的属,如湖猿、树猿、宽齿猿和池猿等有较明显的区别。这是我国第一颗比较可靠的上猿牙齿化石。 相似文献
19.
A skeleton fragment of a spadefoot toad (family Pelobatidae Bonaparte, 1850) from the Middle Miocene (Early Sarmatian) of the Karpov Yar locality (northern Moldova) is described. Since the material is incomplete, it is only determined as Pelobatidae gen. indet. This is the first spadefoot toad from the Miocene of Moldova. 相似文献
20.
Tao Deng 《Palaeontology》2004,47(6):1427-1439
A new species of the genus Alicornops, A. laogouense , from Laogou in Hezheng County, Linxia Basin, Gansu, China, is described. It is mid-sized in the subfamily Aceratheriinae, but is the largest known species of Alicornops . It represents the first discovery of the genus in Asia. The Middle Miocene fauna bearing A. laogouense is contemporaneous with the Dingjiaergou fauna of Tongxin, Ningxia, China, and its age corresponds to MN 6 in Europe. The discovery of A. laogouense in the Linxia Basin implies that Alicornops dispersed from Europe to Asia. During MN 6 times it was relatively widespread throughout Eurasia. Alicornops laogouense lived in open woodland rich in lakes and rivers. 相似文献