[dinosaur] Gretcheniao, new bird from Early Cretaceous of China (free pdf)

Ben Creisler
bcreisler@gmail

A new paper in open access:

Gretcheniao sinensis gen. et sp. nov.


Chiappe LM, Qingjin M, Serrano F, Sigurdsen T, Min W, Bell A, Di L. 2019.
New Bohaiornis-like bird from the Early Cretaceous of China:
enantiornithine interrelationships and flight performance.
PeerJ 7:e7846
doi: https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.7717_peerj.7846&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=59ISRnrdn0En2mxFqN5EpMcyEwYoWconZ8pCGP6Fcug&s=JRmViqZe1mkHq2CyuAjzkOPiqMgOkqNtjp2sqi_x9To&e= 
https://urldefense.proofpoint.com/v2/url?u=https-3A__peerj.com_articles_7846_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=59ISRnrdn0En2mxFqN5EpMcyEwYoWconZ8pCGP6Fcug&s=giLdK435OhjuMF7oq6fCDDfRh8k-pURcPOzNHh4q-Dw&e= 

Free pdf:
https://urldefense.proofpoint.com/v2/url?u=https-3A__peerj.com_articles_7846.pdf&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=59ISRnrdn0En2mxFqN5EpMcyEwYoWconZ8pCGP6Fcug&s=B3jS29QWi1NAoNB549LGj3ZrDjh7HecnIZ6Qpmwug4k&e= 


During the last decade, several Bohaiornis-like enantiornithine
species--and numerous specimens--have been recognized from the celebrated
Jehol Biota of northwestern China. In this paper, we describe the anatomy
of another “bohaiornithid” species from the 125 million-year-old Yixian
Formation of Liaoning Province, China. The new taxon differs from
previously recognized "bohaiornithids" on a number of characters from the
forelimb and shoulder girdle. We also provide a new phylogenetic framework
for enantiornithine birds, which questions the monophyly of the previously
recognized bohaiornithid clade and highlights ongoing challenges for
resolving enantiornithine interrelationships. Additionally, we offer the
first assessment of the flight properties of Bohaiornis-like
enantiornithines. Our results indicate that while "bohaiornithids" were
morphologically suited for flying through continuous flapping, they would
have been unable to sustain prolonged flights. Such findings expand the
flight strategies previously known for enantiornithines and other early
birds.


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