除了原始羽毛，这块9900万年前的琥珀还将软组织和8节完整的椎骨保存了下来。
Along with the primitive plumage, the 99-million-year-old amber also preserved soft tissue and eight complete vertebrae.
麦凯乐博士发现的羽毛化石不全是非常原始的。
Not all the feathers found by Dr McKellar were so primitive, though.
最原始的羽毛是单纤维，类似于刚毛，从爬行动物的皮肤上突出来。
Feathers in their most primitive form were single filaments, resembling quills, that jutted from reptilian skin.
后来成为国家地质博物馆馆长的季强买下了李应方发现的化石标本，因为羽毛结构的缘故，他推测这是一种以前从未发现过的原始鸟类。
Because of the feathers, Ji Qiang, then the director of the National Geological Museum, which bought one of Li's slabs, assumed it was a new species of primitive bird.
而其他羽毛化石(尽管缺乏碳元素)中找到的痕迹，也许能显示已经因氧化而消失的黑色素体的原始存在。
But trace imprints found in other fossilised feathers (despite an absence of carbon) may indicate the original presence of melanosomes that have since been lost to oxidation.
拥有更为原始的羽毛的恐龙，当初可能将其用于调节身体温度、伪装和发出视觉信号，而非辅助飞行。
It could be that dinosaurs with more primitive feathers used them for temperature regulation, camouflage and visual signaling, rather than flight.
这种结构最终被证实是极其原始的羽毛——且存在于陆生的兽脚亚目恐龙身上。
At last there was evidence of truly primitive feathers—found on a ground-running theropod.
一旦原始细丝结构进化完成，其基因只需微调就能产生结构越来越复杂的羽毛。
Once the first filaments had evolved, only minor modifications would have been required to produce increasingly elaborate feathers.
这一化石形成的时代是羽毛或类似羽毛的附属物开始出现的时代，但是这种恐龙来自一个更加原始的进化枝。
The fossil dates from a time period when feathers or feather-like appendages have been seen, but the dinosaur is from a branch of the evolutionary tree that is more primitive.
这一化石形成的时代是羽毛或类似羽毛的附属物开始出现的时代，但是这种恐龙来自一个更加原始的进化枝。
The fossil dates from a time period when feathers or feather-like appendages have been seen, but the dinosaur is from a branch of the evolutionary tree that is more primitive.
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