Rhachides

noun

Definitions

Noun
  1. 1
    plural of rhachis form-of, plural

    "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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