期刊
ACTA GEOLOGICA SINICA-ENGLISH EDITION
卷 88, 期 4, 页码 1034-1040出版社
WILEY
DOI: 10.1111/1755-6724.12270
关键词
Enantiornithes; Aves; Early Cretaceous; Yixian Formation; Liaoning; China
资金
- Asian Swedish research partnership programme of the Swedish Research Councile
- MST of China [2006CB806400]
- National Natural Science Foundation of China [40121202]
A new bird from the early Cretaceous Yixian Formation of Liaoning, China is described. This new species, Grabauornis lingyuanensis, shares several synapomorphies with the Enantiornithes. The specimen is relatively well preserved. The skeletal morphology of Grabauornis bears close resemblance to that of other Chinese members of this clade. The brachial index (the ratio between the lengths of humerus and ulna) is 0.95, which is close to the average for enantiornithine birds. It indicates that Grabauornis was a rather good flyer, and the presence of an alula in the wing further testifies to this.
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