A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China

@article{Wang2019ANE,
  title={A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China},
  author={Min Wang and Zhonghe Zhou},
  journal={Journal of Systematic Palaeontology},
  year={2019},
  volume={17},
  pages={1299 - 1312}
}
We report a new small enantiornithine, Shangyang graciles gen. et sp. nov., based on a nearly complete and articulated skeleton from the Lower Cretaceous Jiufotang Formation of Liaoning Province, north-eastern China. Shangyang has premaxillae that are completely fused rostrally as well as along the frontal processes, a previously unrecognized condition in Early Cretaceous birds. As in three other enantiornithine taxa, Shangyang preserves a pair of craniolateral processes in the sternum… 
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