Project 3403: M. Kundrát, T. H. Rich, J. Lindgren, P. Sjövall, P. Vickers-Rich, L. M. Chiappe, B. P. Kear. 2020. A polar dinosaur feather assemblage from Australia. Gondwana Research. 80:1-11.
Specimen: † Aves indet. (NMV/P:26059B)
View: Counterpart

Abstract

Exceptionally preserved Mesozoic feathered dinosaur fossils (including birds) are famous, but recognized from only very few localities worldwide, and are especially rare in the Southern Hemisphere. Here we report an assemblage of non-avian and avian dinosaur feathers from an Early Cretaceous polar (over 70 degrees S) environment in what is now southeastern Australia. The recovered remains incorporate small (10–30 mm long) basal paravian-like tufted body feathers, open-vaned contour feathers, and asymmetrical bird-like wing feathers that possess high-angled barbs with possible remnants of barbicels — amongst the geologically oldest observed to date. Such morphological diversity augments scant skeletal evidence for a range of insulated non-avian theropods and birds inhabiting extreme southern high-latitude settings during the Mesozoic. Although some of these fossil feathers exhibit what may be residual patterning, most are uniformly toned and preserve rod-shaped microbodies, as well as densely-packed microbody imprints on the barbules that are structurally consistent with eumelanosomes. Geochemical analysis detected no identifiable residual biomolecules, which we suspect were lost via hydrolysis and oxidization during diagenesis and/or weathering. Nevertheless, an originally dark pigmentation can be reasonably inferred from these melanic traces, which in life might have facilitated crypsis, visual communication and thermoregulation in a cold polar habitat.


Read the article »

Article DOI: 10.1016/j.gr.2019.10.004

Project DOI: 10.7934/P3403, http://dx.doi.org/10.7934/P3403
This project contains
  • 42 Media
  • 3 Folios
  • 3 Taxa
  • 8 Specimens
Total size of project's media files: 127.26M

Download Project SDD File
Currently Viewing:
MorphoBank Project 3403

    Authors' Institutions

    • Lund University

    • Monash University

    • University of Pavol Jozef Šafárik

    • Uppsala University

    • Museums Victoria

    • Natural History Museum of Los Angeles County

    • RISE Research Institutes of Sweden

    • Swinburne University of Technology



    Members

    member name taxa specimens media
    Benjamin Kear
    Project Administrator
    3842
    Martin Kundrat
    Full membership
    000
    Thomas Rich
    Full membership
    000
    Pat Vickers-Rich
    Full membership
    000


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views13419
    Project overview861
    Media views8438Media search (1214 views); M675622 (189 views); M675653 (170 views); M675615 (200 views); M675620 (181 views); M675630 (167 views); M675618 (183 views); M675621 (175 views); M675616 (191 views); M675648 (166 views); M675617 (167 views); M675619 (170 views); M675623 (161 views); M675624 (170 views); M675625 (180 views); M675626 (168 views); M675627 (171 views); M675628 (171 views); M675629 (198 views); M675631 (158 views); M675632 (172 views); M675633 (175 views); M675634 (172 views); M675635 (166 views); M675636 (164 views); M675637 (175 views); M675638 (177 views); M675639 (168 views); M675640 (208 views); M675641 (161 views); M675642 (166 views); M675643 (165 views); M675644 (177 views); M675645 (165 views); M675646 (174 views); M675649 (174 views); M675650 (158 views); M675651 (162 views); M675652 (167 views); M675654 (169 views); M675655 (156 views); M675656 (151 views); M675647 (166 views);
    Views for media list577
    Specimen list1689
    Taxon list931
    Folio views699Folio list (241 views); Koonwarra Fossil Bed feather images (146 views); Koonwarra Fossil Bed barbule and barbicel micrographs (152 views); Koonwarra Fossil Bed melanosome micrographs (160 views);
    Bibliography223
    Documents list1




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project163
    Media downloads45M675615 (1 download); M675620 (3 downloads); M675616 (1 download); M675617 (1 download); M675618 (2 downloads); M675619 (1 download); M675621 (1 download); M675622 (1 download); M675623 (1 download); M675624 (1 download); M675625 (1 download); M675626 (1 download); M675627 (1 download); M675628 (1 download); M675629 (1 download); M675630 (1 download); M675631 (1 download); M675632 (1 download); M675633 (1 download); M675634 (1 download); M675635 (1 download); M675636 (1 download); M675637 (1 download); M675638 (1 download); M675639 (1 download); M675640 (1 download); M675641 (1 download); M675642 (1 download); M675643 (1 download); M675644 (1 download); M675645 (1 download); M675646 (1 download); M675648 (1 download); M675649 (1 download); M675650 (1 download); M675651 (1 download); M675652 (1 download); M675653 (1 download); M675654 (1 download); M675655 (1 download); M675656 (1 download); M675647 (1 download);
    Project downloads118