Project 1005: Xiaoting Zheng, Shundong Bi, Xiaoli Wang, Jin Meng. 2013. A new arboreal haramiyid shows the diversity of crown mammals in the Jurassic period. Nature. 500 (7461):199-202.
Specimen: † Arboroharamiya jenkinsi (STM:33-9)

Abstract

A major unsolved problem in mammalian evolution is the origin of Allotheria, including Multituberculata and Haramiyida1,2,3,4,5. Multituberculates are the most diverse and best known Mesozoic era mammals and ecologically resemble rodents, but haramiyids are known mainly from isolated teeth, hampering our search for their phylogenetic relationships. Here we report a new haramiyid from the Jurassic period of China, which is, to our knowledge the largest reported so far. It has a novel dentition, a mandible resembling advanced multituberculates and postcranial features adapted for arboreal life. Our phylogenetic analysis places Haramiyida within crown Mammalia, suggesting the origin of crown Mammalia in the Late Triassic period and diversification in the Jurassic, which contrasts other estimated divergence times of crown Mammalia6,7,8. The new haramiyid reveals additional mammalian features of the group, helps to identify other haramiyids represented by isolated teeth, and shows again that, regardless of various phylogenetic scenarios, a complex pattern of evolution involving many convergences and/or reversals existed in Mesozoic mammals.


Read the article »

Article DOI: doi:10.1038/nature12353

Project DOI: 10.7934/P1005, http://dx.doi.org/10.7934/P1005
This project contains
  • 1 Media
  • 4 Documents
  • 1 Taxon
  • 1 Specimen
Total size of project's media files: 10 MB

Download Project SDD File
Currently Viewing:
MorphoBank Project 1005
  • Creation Date:
    14 August 2013
  • Publication Date:
    04 February 2014
  • Project views: 13930

    Authors' Institutions

    • American Museum of Natural History

    • Institute of Vertebrate Paleontology and Paleoanthropology

    • Indiana University of Pennsylvania

    • Linyi University

    • Shandong Tianyu Museum of Nature



    Members

    member name taxa specimens media
    MorphoBank Curator
    Project Administrator
    Last logged in 02/04/14
    111
    Maureen Admin
    Full membership
    Last logged in 02/04/14
    000
    Shundong Bi
    Full membership
    Last logged in 02/04/14
    000


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views13930
    Project overview3036
    Documents list1703
    Media views4461Media search (3875 views); M323298 (586 views);
    Specimen list2238
    Taxon list1550
    Bibliography942




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project237
    Document downloads6Haramyid matrix (6 downloads);
    Project downloads231