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
  • Creation Date:
    14 May 2015
  • Publication Date:
    18 December 2015
  • Project views: 38394

    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
    Last logged in 12/18/15
    1110
    MorphoBank Curator
    Full membership
    Last logged in 02/08/16
    4343430


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views38394
    Project overview2134
    Documents list1030
    Specimen list14963
    Media views14496Media search (2334 views); M406390 (329 views); M406482 (279 views); M406483 (368 views); M406490 (290 views); M406486 (289 views); M406485 (288 views); M406491 (267 views); M406487 (266 views); M406484 (268 views); M406488 (261 views); M406489 (281 views); M407216 (268 views); M407228 (264 views); M407181 (230 views); M407191 (267 views); M407192 (269 views); M407225 (243 views); M407214 (327 views); M407213 (302 views); M407223 (264 views); M407182 (301 views); M407188 (273 views); M407221 (269 views); M407190 (243 views); M407229 (310 views); M407220 (262 views); M407185 (247 views); M407219 (286 views); M407189 (261 views); M407193 (246 views); M407224 (256 views); M407211 (230 views); M407218 (225 views); M407226 (323 views); M407183 (238 views); M407180 (290 views); M407212 (252 views); M407215 (294 views); M407184 (259 views); M407187 (268 views); M407186 (254 views); M407227 (259 views); M407222 (436 views); M407217 (260 views);
    Taxon list5190
    Bibliography581




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project193
    Document downloads7Burrowing origin of modern snakes_PLY files of inner ears (6 downloads); Copyright stated in the upper right corner (1 download);
    Project downloads186