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Bailleul, Alida M., Jingmai O’Connor, Shukang Zhang, Zhiheng Li, Qiang Wang, Matthew C. Lamanna, Xufeng Zhu, and Zhonghe Zhou. "An Early Cretaceous Enantiornithine (Aves) Preserving an Unlaid Egg and Probable Medullary Bone." Nat Commun 2019.

Bailleul, Alida M., et al. "An Early Cretaceous Enantiornithine (Aves) Preserving an Unlaid Egg and Probable Medullary Bone." Nat Commun 2019.