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安徽淮南早寒武世蠕虫化石的发现 总被引:2,自引:0,他引:2
Palaeoscolexhuainanensissp.nov.是我国华北地区寒武纪地层中首次发现的蠕虫化石,也是我国寒武纪地层中所发现的蠕虫化石的最高层位。 相似文献
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福建龙岩苏邦栖霞组上部蜓类 总被引:2,自引:0,他引:2
本文记叙了福建省龙岩苏邦早二叠世栖霞组上部的类化石,计4属8种,并建立了Praesumatrinaneoschwagerinoides-Verbeekinacrassispira组合带。这些类化石的发现,不但为该地区地层划分与对比提供了新的证据,而且对华南地区早二叠世地层划分有一定意义. 相似文献
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湖北鹤峰白果坪水井沱组(早寒武世)燧石中微化石新资料 总被引:2,自引:0,他引:2
湖北省鹤峰白果坪剖面下寒武统水井沱组底部黑色燧石的岩石薄片中,发现有丰富的保存完好的微化石,包括球形藻、刺球藻、丝状藻类及一些分类不明的微化石。经初步研究计有6属9种类型。其中包括1新属Spiciformagen.nov.和2个新种Spiciformaagglomeratagen,etsp.nov.和?Retinaritesspiralissp.nov.。这一发现进一步丰富了早寒武世早期硅质岩相地层的微体化石资料,为相关地层的对比提供了可资参考的古生物学依据。 相似文献
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本文记述了采自山东平邑盆地卞桥组中段的介形类化石15属21种,其中1新属,10新种,并依据Sinodarwinula属建立Sinodarwinulidae新科。根据化石的分析对比,确认含化石地层的时代为始新世早期。介形类化石组合中发现Cypridea(Cypridea)pingyiensisGuansp.nov.,这是已知该属在我国出现的最高层位,为研究Cypridea的演化提供了重要的材料。 相似文献
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内蒙古巴彦乌兰地区始新世哺乳类及相关地层问题 总被引:2,自引:2,他引:0
记述了在内蒙古巴彦乌兰地区发现的4种始新世哺乳动物化石,其中包括1个啮齿类新种──Mergenomys neimongolensis sp.nov。新种与在蒙古共和国发现的属型种M.orientalis的不同在于个体大,下臼齿下外脊和下次小尖相对偏于唇侧。新化石的发现以及对岩石地层的分析表明巴彦乌兰剖面上原认为的伊尔丁曼哈组应包含伊尔丁曼哈及沙拉木伦组两个地层单位。 相似文献
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广西早泥盆世节甲鱼类及胴甲鱼类化石及华南早泥盆世脊椎动物生 … 总被引:1,自引:1,他引:0
描述了甲泥盆世的3个属种,其中节甲鱼类Yuiangolepis liujingensis gen.et sp.nov. Buchhanosteus sp.及胴甲鱼类?Chuchinolepis sp.采自广西玉林。该3件标本均产自海相地层中,与海相无脊动物化古共生。还讨论了华南区几个主要产脊椎动物化石(包括脊椎动物微体化石)剖面的生物地层对比。 相似文献
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记述了产自云南省华宁县盘溪地区一打得组一新的节甲鱼类化石,似扁平华宁鱼(Huaningichthys omalodes gen. et sp. nov.)。化石为一完整的下颌板,这是我国首次记述的盾皮鱼类下颌骨化石。根据与下颌板一起产出的竹节石化石和地层对比,产出化石的地层时代为晚泥盆世早期(Frasnian)。该类鱼的生境为浅海深水的盆地相或开放海环境。 相似文献
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山东山旺新发现的中新世松鼠类化石 总被引:2,自引:2,他引:0
<正>Three forms of Sciuridae, Tamiops asiaticus (Qiu, 1981) , Sciurus lii sp. nov. , and Oriensciums linquensis gen. et sp. nov. are described from the early-middle Miocene Shanwang Formation at Linqu, Shandong Province. Comparisons of Tamiops asiaticus with Meinia asiatica Qiu, 1981 suggest that neither the size nor the morphology of the bodies and dentition allows the two genera to be distinguished. The genus name Meinia Qiu, 1981 is therefore considered a junior synonym of Tamiops Allen, 1906. S. lii is one of the earliest records for the genus Sciurus . Some isolated teeth from the early Miocene locality Sihong, previously referred to Shuanggouia lui show similarities to S. lii and are assigned to the genus Sciurus in this paper. Redetermination of Shuanggouia argues convincingly for its assignment to Sciurinae rather than Petauristinae. Oriensciurus linquensis exhibits some characters similar to Sciurus in the upper cheek teeth, and to Spermophilinus in the lower ones. The overall dental features, however, group the new genus with tree squirrels. The Shanwang fossil sciurid association highly suggests the Shanwang area was a forest biotope during the Miocene, and indicates an obviously "Transitional Zone" between the modem Oriental Region and the Palearctic Region. 相似文献
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Qiu Zhanxiang Yah Defa Jia Hang Institute of Vertebrate Paleontology Paleoanthropology Academia Sinica Wang Baozhong Linqu Paleontological Museum 《古脊椎动物学报》1985,(4)
<正> Ursavus fossils have been known from over 20 Miocene localities in Europe. However, the records from other continents are very scanty and the materials are all very fragmentary (Ch. Frick, 1926, J. E. Storer, 1975 for North America and N. Schmidt-Kittler, 1976 for Turkey). The presence of the genus in China was first reported recently when Qi Guoqin (1984) described some teeth referred to Ursavus depereti from the famous Ramapithecus site of Lufeng, Yunnan Province. 相似文献
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Qiu Zhanxiang Yan Defa Institute of Vertebrate Paleontology Paleoanthropology Academia Sinica Beijing Sun Bo Shanwang Paleontological Museum Linqu Shandong 《古脊椎动物学报》1991,(2)
<正> While helping to curate the jumbled specimens accumulated at the Shanwang Paleontological Museum in 1985, the senior authors of the present paper were happy enough to find a tapirid specimen. Through careful preparation it turned out to be a part of articulated skeleton consisting of skull, lower jaw, cervical and some anterior dorsal vertebrae and a scapula. As most of the other fossils from Shanwang, it is laterally compressed, therefore, no width could actually be measured. The nasal bones of the skull have become vertically oriented through compression. Otherwise the skull is little deformed. In order to study the tooth morphology closely, we had to extract most of the teeth from the left side of the tightly occlused tooth battery. All this notwithstanding, the skull represents one of the few well preserved specimens among the tapirid fossils ever found. 相似文献
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NEW FOSSIL MICROMAMMALS FROM SHANWANG, SHANDONG 总被引:1,自引:1,他引:0
Qiu Zhuding Institute of Vertebrate Paleontology Paleoanthropology Academia SinicaSun Bo Linqu Paleontological Museum 《古脊椎动物学报》1988,(1)
<正> In comparison with the recovery of macromammals from Shanwang, Shandong, the finds of micromammals from the locality are still rather small. Up to now, only three forms, Shanwangia unexpectula Young, 1977, Meinia asiatica Qiu, 1981 and Diatomys shantungensis Li, 1977 have been reported. Two taxa of small mammals described in this paper can be added to the list of the middle Miocene Shanwang fauna. The specimens in question were collected from the diatomaceous quarry in 1983. 相似文献
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Li jinling Institute of Vertebrate Paleontology Paleoanthropology Academia SinticaWang Baozhong Linqu Paleontological Museum 《古脊椎动物学报》1987,(3)
<正> A crocodilian specimen is described and identified, as a new species of Alligalor in present paper. The material was collected from the Middle Member of the Shanwang Formation, Linqu County, Shandong Province by the members of the Linqu Paleontological Museum in 1984. Nearly 40 taxa of fossil vertebrates, including fishes, amphibians, reptiles, birds and mammals, have been reproted from this Miocene locality since 1930's (Yian et al. 1983, Qiu et al. 1986). Within the vertebrate fauna the fossil mammals and fishes are very rich, but the other are relatively rare. This is the first record of a crocodilan from the diatomaceous quarry of Shanwang. 相似文献
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山东山旺新发现的大型熊类化石 总被引:3,自引:2,他引:1
本文记述了山东山旺的三种大型熊类化石: Hymicyon (Phoberocyon) youngi, Thaumastocyoninae gen. et sp. n. (unnamed) 和 Amphicyon cf. confucianus.前两类是最近新发现的.在进化水平上,它们和欧洲及北美中中新世早期的同类动物相近.后一种仅以一枚 M_3 为代表,该材料可能是三十年代采集而未被研究的.如果我们对 Hemicyon (Phoberocyon) youngi (Chen), 1981 的看法和鉴定无误的话,那么种型化石的产地,即湖北钟祥的地质时代,应比原来想象的要早,可能与山旺的时代接近,即柜当于欧洲的 MN4 或 MN5. 相似文献
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陶君容 《Acta Botanica Sinica》1992,34(3):240-242
五十多年前胡骕在研究山东临朐县山旺组的植物化石中,发现有花的化石,仅保存了5个花瓣或仅5个萼片,均难给予确切的分类位置;六十年代我们两次去山旺野外工作,发现为数较多,同样仅保存花瓣或萼片的化石。本文研究的是80年代发现并保存较为完好的花化石。新近李凤麟详细论述了各门类化石,均认为山旺组的地质时代属中中新世。近十余年来,国际上被子植物的花化石的研究进展较快。每次花化石的发现,对研究被子植物种系发生、系统位置及在地史中的演化及演变速率等均是极重要 相似文献
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山东山旺Palaeomeryx化石的初步研究 总被引:2,自引:1,他引:1
Palaeomeryx 在含义、性质和分类位置上,一直是一个争论较多的属.最近在山旺发现的 Palaeomeryx 完整骨架,为解决上述问题提供了有价值的资料和证据. Palaeomeryx 雄性具有一对眶上"皮骨角"和单一的"枕顶角".根据共近裔性状的分析,本文作者认为 Palaeomeryx 应该归入长颈鹿,作为这一支中最早分出的一个旁支.长颈鹿和鹿科有较近的亲缘关系,而和牛科的关系较远. Palaeomeryx 大概位于 Blastomeryx 和 Leptomeryx 之间,从反刍类主干中分出.山旺的材料,代表本属中一个较原始的新种: Palaeomeryx tricornis. 它的时代,可能相当于欧洲的 MN4 或 MN5. 相似文献
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记述我国山东山旺中新统山旺组双翅目毛蚊科Plecia属3新种和Bibio属1新种.根据现代毛蚊类的生态学知识推断了中新世山旺地区的古生态特征.同时,讨论了Clothonopsis miocenica的基本特征以及分类描述中存在的问题,认为不能把这个种置于纺足目,应归入双翅目的毛蚊科. 相似文献