Project 2636: P. Godefroit, A. Cau, H. Dong-Yu, F. Escuillié, W. Wenhao, G. Dyke. 2013. A Jurassic avialan dinosaur from China resolves the early phylogenetic history of birds. Nature. 498 (7454):359-362.
Specimen: † Aurornis xii (unvouchered)
View: body

Abstract

The recent discovery of small paravian theropod dinosaurs with well-preserved feathers in the Middle–Late Jurassic Tiaojishan Formation of Liaoning Province (northeastern China) has challenged the pivotal position of Archaeopteryx, regarded from its discovery to be the most basal bird. Removing Archaeopteryx from the base of Avialae to nest within Deinonychosauria implies that typical bird flight, powered by the forelimbs only, either evolved at least twice, or was subsequently lost or modified in some deinonychosaurians. Here we describe the complete skeleton of a new paravian from the Tiaojishan Formation of Liaoning Province, China. Including this new taxon in a comprehensive phylogenetic analysis for basal Paraves does the following: (1) it recovers it as the basal-most avialan; (2) it confirms the avialan status of Archaeopteryx; (3) it places Troodontidae as the sister-group to Avialae; (4) it supports a single origin of powered flight within Paraves; and (5) it implies that the early diversification of Paraves and Avialae took place in the Middle–Late Jurassic period.


Read the article »

Article DOI: 10.1038/nature12168

Project DOI: 10.7934/P2636, http://dx.doi.org/10.7934/P2636
This project contains
  • 1 Media
  • 1 Document
  • 9 Taxa
  • 1 Specimen
Total size of project's media files: 47.46k

Download Project SDD File
Currently Viewing:
MorphoBank Project 2636
  • Creation Date:
    16 March 2017
  • Publication Date:
    06 April 2017
  • Project views: 7428

    Authors' Institutions

    • Jilin University

    • Northeast Normal University

    • University of Southampton

    • Royal Belgian Institute of Natural Sciences

    • Shenyang Normal University

    • Museo Geologico ‘Giovanni Capellini’ (Bologna)

    • Eldonia - Paleontologie



    Members

    member name taxa specimens media
    MorphoBank Curator
    Project Administrator
    000


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views7428
    Media views1871Media search (1502 views); M437938 (369 views);
    Project overview1070
    Documents list482
    Taxon list2403
    Specimen list796
    Views for media list453
    Bibliography353




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project115
    Document downloads3Matrix and characters as a pdf (3 downloads);
    Project downloads112