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Hongshanornis (ornithuromorph bird) aerodynamics and diet (free pdf)



From: Ben Creisler
bcreisler@gmail.com

A new paper not yet mentioned in open-access PeerJ:


Luis M. Chiappe, Bo Zhao, Jingmai K. O’Connor, Gao Chunling, Xuri
Wang, Michael Habib, Jesus Marugan-Lobon, Qingjin Meng & Xiaodong
Cheng (2014)
A new specimen of the Early Cretaceous bird Hongshanornis longicresta:
insights into the aerodynamics and diet of a basal ornithuromorph.
PeerJ 2:e234
DOI: http://dx.doi.org/10.7717/peerj.234
https://peerj.com/articles/234/

The discovery of Hongshanornis longicresta, a small ornithuromorph
bird with unusually long hindlimb proportions, was followed by the
discovery of two closely related species, Longicrusavis houi and
Parahongshanornis chaoyangensis. Together forming the
Hongshanornithidae, these species reveal important information about
the early diversity and morphological specialization of
ornithuromorphs, the clade that contains all living birds. Here we
report on a new specimen (DNHM D2945/6) referable to Hongshanornis
longicresta that contributes significant information to better
understand the morphology, trophic ecology, and aerodynamics of this
species, as well as the taxonomy of the Hongshanornithidae. Most
notable are the well-preserved wings and feathered tail of DNHM
D2945/6, which afford an accurate reconstruction of aerodynamic
parameters indicating that as early as 125 million years ago, basal
ornithuromorphs had evolved aerodynamic surfaces comparable in size
and design to those of many modern birds, and flight modes alike to
those of some small living birds.


See also:

http://phenomena.nationalgeographic.com/2014/01/08/feathery-fossil-offers-insights-into-the-flight-and-diet-of-an-early-bird/