Nature Communications (Dec 2018)

Medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils

  • Jingmai O’Connor,
  • Gregory M. Erickson,
  • Mark Norell,
  • Alida M. Bailleul,
  • Han Hu,
  • Zhonghe Zhou

DOI
https://doi.org/10.1038/s41467-018-07621-z
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 8

Abstract

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Medullary bone is used by modern female birds as a calcium reservoir for eggshell production. Here, O’Connor and colleagues propose criteria for identifying medullary bone in fossils and report medullary bone from a Cretaceous enantiornithine bird fossil.