New hadrosaur paper

[Brad McFeeters <archosauromorph2@hotmail.com>]

Godefroit, P., Y.L. Bolotsky & J. van Itterbeek, 2004.  The lambeosaurine 
dinosaur *Amurosaurus riabinini*, from the Maastrichtian of Far Eastern 
Russia.  Acta Palaeontologica Polonica 49 (4): 585-618.

Abstract:  *Amurosaurus riabinini* Bolotsky and Kurzanov, 1991 (Dinosauria, 
Hadrosauridae) is described on the basis of numerous disarticulated bones 
from the Maastrichtian Udurchukan Formation of Blagoveschensk, Far Eastern 
Russia. Comparisons with North American palynozones and their 
well-calibrated ages suggest that this formation is late Maastrichtian in 
age. It is shown that *A. riabinini* is a valid species, characterised by 
cranial and postcranial autapomorphies. A phylogenetic analysis, based on 40 
cranial, dental, and postcranial characters, indicates that this taxon 
occupies a relatively basal position within the lambeosaurine subfamily as 
the sister-taxon of a monophyletic group formed by the parasauroloph and 
corythosaur clades. This cladogram also demonstrates that lambeosaurines 
have an Asian origin. In eastern Asia, lambeosaurine dinosaurs dominate late 
Maastrichtian dinosaur localities, whereas this group is apparently no 
longer represented in synchronous localities from western North America .

Free .pdf on the APP website.  Includes some nice skull and skeletal 
reconstructions.

_________________________________________________________________
MSN® Calendar keeps you organized and takes the effort out of scheduling 
get-togethers. 
http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines 
 Start enjoying all the benefits of MSN® Premium right now and get the 
first two months FREE*.