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 views62614
    Project overview2806
    Documents list1372
    Specimen list24337
    Media views24089Media search (3736 views); M406390 (536 views); M406482 (485 views); M406483 (558 views); M406490 (478 views); M406486 (473 views); M406485 (471 views); M406491 (449 views); M406487 (453 views); M406484 (459 views); M406488 (453 views); M406489 (462 views); M407216 (448 views); M407228 (420 views); M407181 (424 views); M407191 (461 views); M407192 (449 views); M407225 (428 views); M407214 (513 views); M407213 (495 views); M407223 (439 views); M407182 (488 views); M407188 (466 views); M407221 (445 views); M407190 (425 views); M407229 (460 views); M407220 (438 views); M407185 (441 views); M407219 (498 views); M407189 (453 views); M407193 (438 views); M407224 (437 views); M407211 (414 views); M407218 (419 views); M407226 (501 views); M407183 (427 views); M407180 (483 views); M407212 (432 views); M407215 (482 views); M407184 (443 views); M407187 (461 views); M407186 (433 views); M407227 (430 views); M407222 (635 views); M407217 (450 views);
    Taxon list9121
    Bibliography889




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project431
    Document downloads11Burrowing origin of modern snakes_PLY files of inner ears (9 downloads); Copyright stated in the upper right corner (2 downloads);
    Project downloads416
    Media downloads4M406484 (1 download); M407192 (1 download); M407226 (2 downloads);