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   鸟化石 的翻译结果: 查询用时:0.432秒
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鸟化石
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  bird fossils
     The bird fossils are preserved well. Only in the core area of 2km 2, 800 bird fossils have been sampled, which are divided into 6 genera and 8 species. Up to now,it is a record of the world in the history of research on paleobird, which there are the most largest numb er of bird fossils and bird fossil strato horizons, and of the biggest buried density.
     保护区鸟类化石群保存完好,仅“核心区”2km2就共采出鸟化石约800枚,已鉴定出6属8种,创下了古鸟类研究史上鸟化石数量最多、鸟化石层位最多、埋藏密度最大的纪录,同时它们与7门18纲27类化石共存。
短句来源
  bird fossil
     The bird fossils are preserved well. Only in the core area of 2km 2, 800 bird fossils have been sampled, which are divided into 6 genera and 8 species. Up to now,it is a record of the world in the history of research on paleobird, which there are the most largest numb er of bird fossils and bird fossil strato horizons, and of the biggest buried density.
     保护区鸟类化石群保存完好,仅“核心区”2km2就共采出鸟化石约800枚,已鉴定出6属8种,创下了古鸟类研究史上鸟化石数量最多、鸟化石层位最多、埋藏密度最大的纪录,同时它们与7门18纲27类化石共存。
短句来源
  fossil birds
     FOSSIL BIRDS FROM LINQU,SHANDONG
     山东临朐的鸟化石
短句来源
     (2)The fossil-bearing beds can be vertically divided into three fossil assemblages,of which the middle assemblage contains fossil birds.
     剖面上的化石层可以划分3个化石组合,鸟化石产于中部组合;
短句来源
  “鸟化石”译为未确定词的双语例句
     The pelvis of the new bird is primitive and resembles that of Archaeopteryx, and its vertebral ribs are similar ro thoes of Hesperornis, Ichthyonis and modern birds, but differs from those of Sinornis and Cathayornis.
     这是继三塔中国鸟(Sinornis santensis)、燕都华夏鸟(Cathayomis yandica)之后报道的辽宁中生代第三种鸟化石,它的脊柱和腰带与始祖鸟和恐龙相似,但其肋骨又具有现代鸟类的性状,这是早期鸟类化石的又一新材料。
短句来源
     On the basis of an integrated analysis of the magnetostratigraphic data from different Cretaceous sections in western Liaoning and its neighboring areas and a correlation of these data with the international magnetic polarity time scale for the Mesozoic,the authors suggest that the age of the bird fossil-bearing bed of the Yixian Formation should be older than the age corresponding to the M13normal polarity chron(129Ma ),in the range between131.71and142.27Ma.
     通过对辽西及邻区白垩纪不同剖面的磁性地层资料的综合分析,对比国际中生代地磁极性年表,指出义县组含鸟化石层的地质时代至少应老于M13正极性时(129.6Ma)所对应的地质年代,介于131.71~142.27Ma之间。
短句来源
     Integrated study indicates that the isotopic age(124.6±0.2)Ma of the bird fossil-bearing bed of the Yixian Formation obtained by Swisher et al. through the Ar-Ar dating of sanidine in sedimentary tuff is doubtful.
     综合研究表明,Swisher等通过沉凝灰岩中透长石Ar-Ar法测定的义县组含鸟化石层的同位素年龄(124.6±0.2)Ma值得商榷。
短句来源
     NEW ADVANCES IN THE STUDY OF THE PRIMITIVE BIRD CONFUCIUSORNIS
     孔子鸟化石研究新进展
短句来源
     SEDIMENTARY ENVIRONMENT AND GEOCHEMICAL ANOMALY ON THE BIRD FOSSIL-BEARING BEDS IN SIHETUN AREA
     四合屯含鸟化石层地球化学异常及沉积环境
短句来源
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      bird fossil
    Unfortunately, the bird fossil record before the Holocene is poor, and it is impossible to compare this extinction episode with previous ones.
          
      fossil birds
    Bizarre tubercles on the vertebrae of Eocene fossil birds indicate an avian disease without modern counterpart
          
    Remains of fossil birds with numerous bony tubercles on the cervical vertebrae are reported from the Middle Eocene of Messel in Germany and the Late Eocene of the Quercy fissure fillings in France.
          
    The fossil record forConfuciusornis sanctus is more extensive than that for most other fossil birds.
          


    Before this note, three complete or partly complete specimens of fossil birds have been unearthed from the diatomacous bed of Linqu, Shandong, and were described respectively in two papers by the present author in 1977 and 1980. Recently, a fourth fossil bird was obtained again from the same locality and horizon by the members of Linqu County Museum, and was sent to the present author for study. It is an excellent specimen, and a third note of the group of this animal of Linqu County is therefore here proposed.Order...

    Before this note, three complete or partly complete specimens of fossil birds have been unearthed from the diatomacous bed of Linqu, Shandong, and were described respectively in two papers by the present author in 1977 and 1980. Recently, a fourth fossil bird was obtained again from the same locality and horizon by the members of Linqu County Museum, and was sent to the present author for study. It is an excellent specimen, and a third note of the group of this animal of Linqu County is therefore here proposed.Order Gruiformes Family Rallidae Genus Youngornis, gen. nov.Generic diagnosis——as for the species.Youngornis gracilis, sp. nov. (Pl. Ⅰ)Type A complete skeleton, but part of bones represent only by the concave prints in situ, skull roof missing, neck long, but indistinct, structures of trunk and girdles not so clear, anterior and posterior limbs well preserved.This specimen belongs to the Linqu County Museum, it will be sent back when the determination is made.Locality and Horizon Linqu County, Shandong Province; Middle Miocene (Shanwan Series).Diagnosis Size comparatively small, neck somewhat long. Bill short and stout, with its length shorter than that of tarsometatarsus. Humerus longer than ulna or radius. Bones of hind leg slender and long, but length of tarso-metatarsus still shorter than that of tibia. Four toes, three forward and one rearward, hind toe only slightly higher than others, and stands on same plane fundamentlly with front ones. Toes and claws thin and long, length of middle one (and its claw) longer than that of tarsometatarsus.Remarks At the first glance, the fossil bird here described has seemingly only three front toes, does it really have no hind toe? This is one of the important characters of birds in taxology. With the help of the magnifying glass, we found that there are two connected segments of concave prints situated slightly behind and higher to the inner toe of the right foot (see the enlarged part of the Plate I~*). The first segment is a phalanx, and the second is a claw, they are as long and slender as those seen in other toes forward. Furthermore, at the inner side of the lower part of tarsometatarsus, there projects slightly a small bone from which the concave prints mentioned above extend. The bone is here considered by the present author first metatarsus, and the concave prints hind toe. In the left foot, the same condition can be observed though the prints are not so clear as in the right one.The fossil bird takes a maximum height in preservation only in 202 mm. from its bill to the end of toe, it is a small bird. In view of its structures as a whole, especially the long and slender leg, we can consider it a member of grallatores (wading birds).Among the grallatores, the fossil bird differs clearly from many members by its bill. It also differs from some members of Charadriidae which do not bear a long bill by its developed hind toe. In view of the characters of the small size, the short and stout bill, the long and slender legs and toes, and the length of tarso-metatarsus longer than that of bill, but shorter than that of middle toe and its claw, the present specimen is comparable with some members of Rallidae of Gruiformes, especially those with a small size (such as Porzana).The fossil record of Rallidae is more numerous abroad, it is little known in our country except some fragments such as those from Quaternary of Choukoutien. The fossil bird here described hence represents the earliest and most complete one of Rallidae and even Gruiformes so far known in China, a new genus and species, Youngornis gracilis, of Family Rallidae is thus proposed. The generic name is in honour of my tuitor, late Prof. C. C. Young, who examined the diatomacous bed early in 1935, and named it for the first time "Shanwan Series", where the fossil birds and many other fossils were obtained.It is interesting to note that in the present specimen, on the surface of a place where the gizzard is situated under norma1 condition, some sands are gathered (see Plate I). The present author is hesitatingly to decide whether they are original "gastric sand" of the bird. If so, it would be truly a rare record in fossil bird, and the trunk of the specimen is really upward in preservation.A list of fossil birds so far known from Linqu, Shandong may be now grouped as follows:Galliformes Phasianidae Shandongornis shanwanensis Yeh, 1977 Linquornis gigantis Yeh, 1980 Anseriformes Anatidae Sinanas diatomas Yeh, 1980 Gruiformes Rallidae Youngornis gracilis, gen. et sp. nov.

    在山东临朐解家河硅藻土矿中,此前曾先后出产过三件完整或部分完整的鸟化石,已分别经笔者研究,两次撰文发表(1977,1980)。1979年,临朐县文化馆又从该矿发现第四件完整的鸟化石,再次送与笔者研究,本文即此化石的研究报告。经鉴定、对比,认为该鸟化石应归鹤形目、秧鸡科,为一新属种,名为秀丽杨氏鸟。它是我国秧鸡科甚至鹤形目迄今已知保存最为完整、时代最早的化石代表。

    An incomplete fossil bird skeleton with skull is described in this paper. It is identified as a new genus and species: Songzia heidangkouensis, and it represents a new family, Songzidae, of the Order, Gruiformes. The fossil was found by Prof. Zhang Miman and her colleagues from Eocene brown shale at Heidongkou, Wangjiaqiao, Songzi County, Hubei Province during the Spring of 1987.

    本文记述了采自湖北松滋县王家桥区黑档口早始新世洋溪组页岩中一保存较好的鸟化石。依其形态特征归于鹤形目内,但它与已知鹤形目各科又有某些明显的区别,与秧鸡科比较接近。建立一新科:松滋鸟科Songzidae fam. nov.代表我国已知鹤形目化石最早的记录。这一发现还证明始新世早期亚洲东部北纬30°左右已有比较原始的小型鹤形目鸟类分布。本文还讨论了松滋鸟的某些形态功能。

    This paper describes a recently discovered fossil bird from the early Early Cretaceous of Chaoyang, Liaoning Province. Its morphological characteristics suggest that it is a new representative of early birds. The pelvis of the new bird is primitive and resembles that of Archaeopteryx, and its vertebral ribs are similar ro thoes of Hesperornis, Ichthyonis and modern birds, but differs from those of Sinornis and Cathayornis.

    本文记述了发现于辽宁朝阳地区早白垩世早期一新的鸟类。这是继三塔中国鸟(Sinornis santensis)、燕都华夏鸟(Cathayomis yandica)之后报道的辽宁中生代第三种鸟化石,它的脊柱和腰带与始祖鸟和恐龙相似,但其肋骨又具有现代鸟类的性状,这是早期鸟类化石的又一新材料。

     
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