Project 3674: S. Bi, Y. Wang, J. Guan, X. Sheng, J. Meng. 2014. Three new Jurassic euharamiyidan species reinforce early divergence of mammals. Nature. 514 (7524):579-584.
Specimen: † Shenshou lui (unvouchered)
View: life reconstruction


The phylogeny of Allotheria, including Multituberculata and Haramiyida, remains unsolved and has generated contentious views on the origin and earliest evolution of mammals. Here we report three new species of a new clade, Euharamiyida, based on six well-preserved fossils from the Jurassic period of China. These fossils reveal many craniodental and postcranial features of euharamiyidans and clarify several ambiguous structures that are currently the topic of debate. Our phylogenetic analyses recognize Euharamiyida as the sister group of Multituberculata, and place Allotheria within the Mammalia. The phylogeny suggests that allotherian mammals evolved from a Late Triassic (approximately 208 million years ago) Haramiyavia-like ancestor and diversified into euharamiyidans and multituberculates with a cosmopolitan distribution, implying homologous acquisition of many craniodental and postcranial features in the two groups. Our findings also favour a Late Triassic origin of mammals in Laurasia and two independent detachment events of the middle ear bones during mammalian evolution.

Read the article »

Article DOI: 10.1038/nature13718

Project DOI: 10.7934/P3674,
This project contains
  • 1 Media
  • 2 Documents
  • 3 Taxa
  • 1 Specimen
Total size of project's media files: 35.6k

Download Project SDD File
Currently Viewing:
MorphoBank Project 3674
  • Creation Date:
    26 March 2020
  • Publication Date:
    16 April 2021
  • Project views: 1687

    Authors' Institutions

    • Beijing Museum of Natural History, Beijing

    • American Museum of Natural History

    • Institute of Vertebrate Paleontology and Paleoanthropology, CAS

    • Shenyang Normal University

    • Indiana University of Pennsylvania


    member name taxa specimens media
    MorphoBank Curator
    Project Administrator
    Shundong Bi
    Full membership

    Project has no matrices defined.

    Project views

    type number of views Individual items viewed (where applicable)
    Total project views1687
    Project overview221
    Media views525Media search (419 views); M687141 (106 views);
    Taxon list302
    Documents list112
    Specimen list211
    Views for media list232

    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project37
    Project downloads37