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Urostyle vs Pygostyle - What's the difference?

urostyle | pygostyle |

As nouns the difference between urostyle and pygostyle

is that urostyle is a styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians while pygostyle is the plate supporting the tail-feathers in birds, formed from fused vertebrae.

urostyle

English

Noun

(-)
  • (anatomy) A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians.

    • References

    *

    pygostyle

    English

    Noun

    (en noun)
  • The plate supporting the tail-feathers in birds, formed from fused vertebrae.
  • * 1971': Aderyn the Bird Queen sat down; her '''pygostyle engaged a hard wooden bottom. — Anthony Burgess, ''M/F (Penguin 2004, p. 158)

    • Synonyms

    * parson’s nose * ploughshare bone * pope’s nose * sultan’s nose