Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Preliminary reconstructions of nasal chemosensory evolution in Squamata

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Amphibia-Reptilia

Squamate reptiles are known for using vomerolfaction, the sense associated with the vomeronasal organs, to detect prey, predators, and conspecifies. By comparison, olfaction has been relatively neglected, yet many squamates have highly developed olfactory systems. Data from the literature were used to make preliminary reconstructions of the evolution of the vomeronasal and olfactory systems in Squamata. Vomerolfaction is highly developed in nearly all squamates, and was enhanced progressively in the common ancestors of Scleroglossa, Autarchoglossa, and Anguimorpha, reaching peaks in two autarchoglossan clades, Varanoidea, and Lacertiformes. Olfaction also improved in the common ancestor of Scleroglossa. Olfactory receptor abundance peaked in Gekkota and Lacertoidea, but declined in Anguimorpha, with some increase in snakes. Five major clades of lizards differ in development of chemical senses. Iguanians have the least developed vomerolfaction and olfaction. Gekkotans and lacertoideans have the greatest olfactory development, with greater vomerolfactory development in Lacertoidea. Scincoideans have intermediate olfaction and vomerolfaction. Anguimorphans have the most specialized vomerolfaction coupled in snakes with apparently greater olfactory powers than in varanids.

Affiliations: 1: Department of Biology, Indiana University Purdue University at Fort Wayne, Fort Wayne, Indiana 46805, USA, Email:


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Amphibia-Reptilia — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation