rhachides
名词 n.
英文释义
名词 n.
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plural of rhachis
— However, the rhachides in the proximal portion of the tail of Zhenyuanlong appear to be longer than those of Microraptor 5 6 and Changyuraptor 10, which had relatively small and simple feathers proximally on the tail but much larger and more complex feathers distally, which expanded outwards into a large fan.
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数据来源: Wiktionary