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匿名使用者 發問時間: 社會與文化語言 · 1 0 年前

我有一篇關於恐龍的原文翻譯,翻的不是很好,希望大大幫忙。終張

Integument sprays organized around a central axis cover the shoulders and torso(Fig.5c、d)。These fibres are extremely thin and can be very long;on the hindlimb they are over 5 cm long(Fig.5f)。These sprays form a dense mat around the shoulders。

The most interesting integumentary areas are those on the arms and tail(Figs 5a、e and 6)。In these areas the filaments are complex,bunched and tightly organized。Most of these filaments originate from a single point,forming a radiating spray。On the arms,distally a tight herring-bone pattern appears to be organized around a central rachis(Figs 5 and 6)。This is the same as the pattern seen in Caudipteryx zoui^2。Filaments emanate from the posterior edge of the ulna。These filaments are very long and uniformly perpendicular to the bone。The integumentary covering appears much flatter and more regular in this area;the filaments extend 5.2 cm from this element。 The herring-bone appearance of the preserved impressions indicates that some organizing pattern,such as the barbules of modern birds, must have been present。

Oriented filaments are also distributed along the tail。Relatively short fibres lie at an angle of approximately 45度from the tail axis posteriorly。At the distal end of the tail the filaments become longer,making the end lozenge-shaped。

Because feathers are the only integumental covering in vertebrates that have a tufted or branched structure^27 the occurrence of similar structures in NGMC 91,coupled with its phylogenetic position near the base of birds,is strong evidence that these structures are feather homologues。The myriad findings of flightless dinosaurs from Liaoning with similar integumentary structures that have been shown by independent phylogenetic studies^28、29 to be outside of the Avialae provide important evidence that the origin of feathers is unrelated to the origin of flight in Avialae。

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  • 匿名使用者
    1 0 年前
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    在主軸線周遭組織的覆蓋物水霧蓋住肩和軀幹(圖5 c 、d)。這些纖維極其薄,並且可能非常長; 在hindlimb上他們是超過5厘米長的(圖5f) 。這些水霧在肩周遭形成一個濃的墊席 。最有趣integumentary 地區在臂和尾巴上那些(無花果樹5a 、e和6) 。在這些地區細絲是複雜的,形成一串並且緊緊地組織 。大多數這些細絲起源於一個單個的點,形成散發出的水霧 。在臂上,distally一種緊的鯡魚骨頭圖案看起來被在中心的rachis(圖5 和6)周遭組織 。這相同當時在Caudipteryx zoui 看見的那些圖案 ^ 2 。細絲從尺骨的在後的邊緣流出 。這些細絲徹骨非常長和均勻垂直 。包括的integumentary 出現非常奉承和更在這地區內正規; 細絲延長離這種要素5.2厘米 。 被保護印象的鯡魚骨頭出現表明一些組織圖案,例如現代鳥的barbules,一定存在 。面向的細絲也被沿著尾巴分發 。相對短的纖維存在於一個大約45的角度 度從尾巴軸posteriorly 。在尾巴的遠端的末端細絲變得更長,使末端菱形形成 。羽毛在有一tufted的脊椎動物包括的唯一integumental或者分開架構 ^ 27相似架構在NGMC 91的事件, 以及在鳥的基礎附近的它的phylogenetic 位置,是這些架構是羽毛對應物的強壯的證據 。無數不能飛恐龍從遼寧與獨立phylogenetic 顯示的相似integumentary 架構一起那裡的結論研究 ^ 28 、的29除Avialae外提供重要羽毛的起源與無關航機在Avialae內的起源的證據 。

    參考資料: dtfuyg.
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