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Fwd: Hadrosauroid material from Upper Cretaceous of Hubei Province, China (free pdf)



Another blocked post to the DML it appears. I'll try again...


---------- Forwarded message ----------
From: Ben Creisler <bcreisler@gmail.com>
Date: Wed, Jul 15, 2015 at 7:47 AM
Subject: Hadrosauroid material from Upper Cretaceous of Hubei
Province, China (free pdf)
To: dinosaur@usc.edu


Ben Creisler
bcreisler@gmail.com


A new paper in open access:

TAN Qing-Wei, XING Hai, HU Yong-Gu,TAN Lin & XU Xing (2015)
New hadrosauroid material from the Upper Cretaceous Majiacun Formation
of Hubei Province, central China.
Vertebrata PalAsiatica 53(3): 245-264
http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201507/P020150715560422126364.pdf

The Xichuan Basin is situated along the northwestern border between
Henan and Hubei provinces in central China, and includes a thick
accumulation of Upper Cretaceous sediments. Here we report and
describe some indeterminate hadrosauroid material on the genus level,
which was retrieved from the middle Majiacun Formation (Upper
Cretaceous) in the southwestern area of the Xichuan Basin, northwest
Hubei. The hadrosauroid remains occur with scattered dinosaur eggs at
the same horizon. The majority of the bones may come from the late
nestling and early juvenile stages. This condition could be best
explained by the geographic segregation of the nestlings and early
juveniles from the herd consisting of older individuals, as reported
in some hadrosaurids. A minimum of two hadrosauroid taxa are
identified through direct morphological comparisons: one may represent
a relatively derived non-hadrosaurid hadrosauroid, and the other
probably pertains to Hadrosaurinae. Considering the younger age of
North American hadrosaurines, the presence of hadrosaurine material
within the middle Santonian middle portion of the Majiacun Formation
provides new evidence for the Asian origins of both Hadrosaurinae and
Hadrosauridae.