Project 2170: H. Yi, M. A. Norell. 2015. The burrowing origin of modern snakes. Science Advances. 1 (e1500743):1-5.
Specimen: † Dinilysia patagonica (MACN/RN:1014)

Abstract

Modern snakes probably originated as habitat specialists, but it controversial unclear whether they were ancestrally terrestrial burrowers or marine swimmers. We used x-ray virtual models of the inner ear to predict the habit of Dinilysia patagonica, a stem snake closely related to the origin of modern snakes. Previous work has shown that modern snakes perceive substrate vibrations via their inner ear. Our data show that D. patagonica and modern burrowing squamates share a unique spherical vestibule in the inner ear, as compared with swimmers and habitat generalists. We built predictive models for snake habit based on their vestibular shape, which estimated D. patagonica and the hypothetical ancestor of crown snakes as burrowers with high probabilities. This study provides an extensive comparative data set to test fossoriality quantitatively in stem snakes, and it shows that burrowing was predominant in the lineages leading to modern crown snakes.


Read the article »

Article DOI: 10.1126/sciadv.1500743

Project DOI: 10.7934/P2170, http://dx.doi.org/10.7934/P2170
This project contains
  • 44 Media
  • 2 Documents
  • 44 Taxa
  • 44 Specimens
Total size of project's media files: 1.62G

Download Project SDD File
Currently Viewing:
MorphoBank Project 2170

    This research
    supported by

    Authors' Institutions

    • University of Edinburgh

    • American Museum of Natural History



    Members

    member name taxa specimens media media
    notes
    Hong-yu Yi
    Project Administrator
    1110
    MorphoBank Curator
    Full membership
    4343430


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views82219
    Project overview3305
    Documents list1654
    Specimen list32424
    Media views31738Media search (4656 views); M406390 (703 views); M406482 (651 views); M406483 (710 views); M406490 (640 views); M406486 (631 views); M406485 (639 views); M406491 (617 views); M406487 (610 views); M406484 (607 views); M406488 (660 views); M406489 (619 views); M407216 (586 views); M407228 (552 views); M407181 (578 views); M407191 (600 views); M407192 (573 views); M407225 (579 views); M407214 (640 views); M407213 (639 views); M407223 (586 views); M407182 (636 views); M407188 (612 views); M407221 (592 views); M407190 (568 views); M407229 (590 views); M407220 (582 views); M407185 (586 views); M407219 (649 views); M407189 (597 views); M407193 (599 views); M407224 (588 views); M407211 (564 views); M407218 (561 views); M407226 (645 views); M407183 (577 views); M407180 (646 views); M407212 (578 views); M407215 (669 views); M407184 (587 views); M407187 (613 views); M407186 (585 views); M407227 (576 views); M407222 (784 views); M407217 (678 views);
    Taxon list11943
    Bibliography1155




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project440
    Document downloads12Burrowing origin of modern snakes_PLY files of inner ears (9 downloads); Copyright stated in the upper right corner (3 downloads);
    Project downloads419
    Media downloads9M406484 (1 download); M407192 (1 download); M407226 (2 downloads); M407217 (2 downloads); M407212 (1 download); M407186 (1 download); M407183 (1 download);