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Parahongshanornis, new Chinese Cretaceous bird (free pdf)



From: Ben Creisler
bh480@scn.org


In new Vertebrata Palasiatica at:
http://english.ivpp.cas.cn/sp/PalAsiatica/vp_list/201102/t20110216_65121.htm
l
 (pdfs are free):

LI Li, WANG Jing-Qi, & HOU Shi-Lin (2011)
A NEW ORNITHURINE BIRD (HONGSHANORNITHIDAE) FROM THE JIUFOTANG FORMATION OF
CHAOYANG, LIAONING, CHINA.
Vertebrata Palasiatica 49(2): 195-200
http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201105/P020110530508998177705.pdf


Abstract
A new genus and species (Parahongshanornis chaoyangensis) of a basal
ornithurine bird from the Jiufotang Formation in Yuanjiawa Town, Chaoyang,
western Liaoning Province is reported. It is morphologically most similar
to the basal ornithurines Hongshanornis and Longicrusavis, two only known
genera of the Hongshanornithidae by possessing a shorter wing compared to
the leg and a "U"-shaped furcula that is significantly longer than wide.
The new taxon can be distinguished from these two genera in having a
furcula that is anteroposteriorly compressedproximally, with a deep groove
along the clavicular symphysis, a sternum with two pairs of posterior
excavations, and a pair of short posterior processes between the lateral
trabecula and the medial ridge of the sternum, a short and robust first
phalanx of the major digit, and a pubis with a distinctive pubic foot. The
discovery of the new hongshanornithid from the Jiufotang Formation not only
extends the temporal distribution of the Hongshanornithidae, but also
provides new data for discussing the evolutionary differentiation of basal
ornithurines in the Early Cretaceous.



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