Linked Life Data

21796204

Source:http://linkedlifedata.com/resource/pubmed/id/21796204

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7357
pubmed:dateCreated
2011-7-28
pubmed:abstractText
Archaeopteryx is widely accepted as being the most basal bird, and accordingly it is regarded as central to understanding avialan origins; however, recent discoveries of derived maniraptorans have weakened the avialan status of Archaeopteryx. Here we report a new Archaeopteryx-like theropod from China. This find further demonstrates that many features formerly regarded as being diagnostic of Avialae, including long and robust forelimbs, actually characterize the more inclusive group Paraves (composed of the avialans and the deinonychosaurs). Notably, adding the new taxon into a comprehensive phylogenetic analysis shifts Archaeopteryx to the Deinonychosauria. Despite only tentative statistical support, this result challenges the centrality of Archaeopteryx in the transition to birds. If this new phylogenetic hypothesis can be confirmed by further investigation, current assumptions regarding the avialan ancestral condition will need to be re-evaluated.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1476-4687
pubmed:author
pubmed:issnType
Electronic
pubmed:day
28
pubmed:volume
475
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
465-70
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
An Archaeopteryx-like theropod from China and the origin of Avialae.
pubmed:affiliation
College of Life Science, Linyi University, Shuangling Road, Linyi City, Shandong 276005, China. xingxu@vip.sina.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't