鳥骨龍 的英文怎麼說
中文拼音 [niǎogǔlóng]
鳥骨龍
英文
rhabdodon-
When archaeopteryx, a feathered skeleton that was seemingly half dinosaur and half bird, turned up in 1862 ? three years after the publication of “ the origin of species ” ? the origin of birds became a subject of raging debate among palaeontologists
1862年是《物種的起源》出版的前三年，當時一幅始祖鳥的有翼骨骼（看起來一半是恐龍，另一半是鳥）被發現，那時鳥的起源就成了古生物學家們激烈辯論的一個主題。The feathers attached to the arms and the tail evidently possess the structures of " modern feathers ", which consisting of the central shafts ( rachis ) and parallel barbs. dromaeosaurids are unusual group of maniraptoran theropods. they share many similar or the same features with archaeopteryx or other primitive birds, such as : u - shaped furcula, uncinate process, laterally facing glenoid of shoulder girdle, comparatively long forelimb, large semilunate carple, retroverted pubis, ascending process of astragalus, and " modern feathers " with rachis and barbs etc. these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds, but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones
奔龍類是一類較為特殊的手盜龍類（ maniraptora ） ，它具有許多與始祖鳥archaeopteryx甚至其它早期鳥類相似或接近的特徵，主要表現在：叉骨u形與始祖鳥和孔子鳥類的相同，背肋鉤狀突在孔子鳥類和個別反鳥類中也存在，肩臼窩絕大部分指向側方類似於始祖鳥，肩胛骨與烏喙骨間的夾角非常接近90也和始祖鳥的相似，前肢從比例上講顯得較長，大的半月形腕骨使肘部能向側方折過來，恥骨伸向後下方，距骨上升突與原始鳥類中的為同源結構，羽毛已有顯著的分化且具備了現代羽毛的基本結構等等。It shows many typical characters seen in the type species of the genus of sinornithosaurus, which discovered also from western liaoning. ngmc 00 - 12 - a can further be included in sinornithosaurus by the dentary bifurcated posteriorly, unserrated premaxillary teeth, u - shaped furcula, extremel y short manual phalanx iii - 2 in comparison with the length of phalanx iii - l, very large and developed obturator process of the ischium, partially arctometatarsalian metatarsal iii and so on
它具有許多中國鳥龍屬sinornithosaurus所特有的特徵，如：齒骨後部分叉、前頜骨齒齒冠前後緣均無小鋸齒、叉骨u形、第指第2指節很短、坐骨封閉突極大且具有坐骨後背突、第?骨部分窄足型等，因而無疑應歸入該屬中。This specimen slightly differs from the type species of the same genus sinornithosaurus milknii in the length proportions of some manual elements. because its cranial posterior portion is badly preserved and difficult to be compared with the type species, it is temporarily identified as sinornithosaurus sp
然而這一標本個體較小，其前肢一些骨骼的長短比例與中國鳥龍屬屬型種sinornithosaurusmillenii相比存在一定差異，同時新標本頭骨後部保存不好而不能提供更多信息，故暫將其作為中國鳥龍屬未定種sinornithosaurusspThe fossils here are not only abundant, but kept very intact, especially are well - known for a lot of biological software organize characteristic
如，在恐龍、鳥類、翼龍和哺乳動物的化石中發現了羽毛、毛狀物和毛發，許多生物化石都有軟組織結構如皮膚印痕、軟骨結構、角質喙等。Some continental birds and mammals, for example, have poorly developed respiratory turbinates or nasal passages no larger than those of dinosaurs of similar size
比如說一些種類的陸生鳥類與哺乳類的呼吸鼻甲骨或者呼吸道發育，並不比同樣大小的恐龍更發達。分享友人