[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

New avian ichnogenus from Mongolia



From: Ben Creisler
bh480@scn.org

A new online paper:


Martin G. Lockley, Jianjun Li, Masaki Matsukawa, & Rihui Li (2011)
Cretaceous Research (advance online publication)
doi:10.1016/j.cretres.2011.10.006 
http://www.sciencedirect.com/science/article/pii/S019566711100142X

Abstract
The new bird track Tatarornipes chabuensis ichnogen et. ichnosp nov. is
described from the Lower Cretaceous Jingchuan Formation of Inner Mongolia.
This ichnospecies is abundant in the well-studied Chabu area of central
Inner Mongolia (Nei Mongol). In addition to the type locality (Chabu site
4), large samples are known from Chabu sites 1, 5 and 15, and the
ichnogenus also occurs in the Cretaceous of Shandong Province. More than 50
well-preserved, measured tracks and representative trackways from five
samples are illustrated to show diagnostic features and modifications
attributable to preservation. The ichnospecies, which is characterized by
robust digits that are unusually wide proximally, is easily distinguished
from smaller Cretaceous avian ichnotaxa such as Koreanaornis and
Aquatilavipes, which are smaller and more gracile in appearance.
Tatarornipes also reveals a distinctive trackway pattern often
characterized by long steps and minimal pes rotation. This ichnogenus is
typically found in fluvio-lacustrine settings in association with
saurischian (theropod and sauropod) dominated footprint assemblages.


--------------------------------------------------------------------
mail2web - Check your email from the web at
http://link.mail2web.com/mail2web