THE CENTER FOR NORTH AMERICAN HERPETOLOGY

Amphibia    Anura    Bufonidae  

Wyoming Toad
Anaxyrus baxteri (Porter, 1968)

Current SSAR Comments:
Historically, there has been discussion of the status of this taxon as a species or as an allopatric subspecies of A. hemiophrys and the issue has not been addressed in recent years. The allopatric distribution of A. baxteri and the abundant literature and resources expended toward its conservation (all contemporary efforts framed as A. baxteri) suggest widespread acceptance of this taxonomy, despite the lack of modern methodological approaches brought to bear on the problem.

Range maps are based on curated specimens and provided gratis by CNAH.
(Created by Travis W. Taggart; Version: 2023.05.23.09.33.17)
Download GeoJSON polygon range file: - 0.19 MB

First instance(s) of published English names:
Wyoming Toad (Bufo baxteri: Collins, Joseph T., James E. Huheey, James L. Knight, and Hobart M. Smith. 1978. Standard common and current scientific names for North American amphibians and reptiles. Herpetological Circulars (7):36); Baxter's Toad (Bufo baxteri: Frank, N. and E. Ramus. 1995. Complete Guide to Scientific and Common Names of Amphibians and Reptiles of the World. N. G. Publishing Inc., Pottsville, Pennsylvania. pp.); Wyoming Toad (Anaxyrus baxter: Frost, Darrel R., Roy W. McDiarmid, Joseph R. Mendelson III, and David M. Green. 2012. Anura - Frogs. Pages 11-22 in Society for the Study of Amphibians and Reptiles, Herpetological Circular No. 39. pp.);

Taxon Links:

  
Catalog of American Amphibians and Reptiles
  
Amphibian Species of the World
  
NatureServe
  
iNaturalist
  
GenBank
  
USGS - Nonindigenous Aquatic Species Database

Pertinent LIterature:
1968 Porter, K. R. Evolutionary status of a relict population of Bufo hemiphrys Cope. Evolution 22(3):583-594
1971 Packard, Gary C. Inconsistency in application of the Biological Species Concept to disjunct populations of Anurans in southeastern Wyoming and northcentral Colorado. Journal of Herpetology 5(3-4):191-193
1983 Cook, F. R. An analysis of toads of the Bufo americanus group in a contact zone in central northern North America. Publications in Natural Sciences. National Museum of Canada (3):89
1998 Smith, Hobart M., David Chiszar, Joseph T. Collins, and Frank Van Vreukelen. The taxonomic status of the Wyoming Toad, Bufo baxteri Porter. Contemporary Herpetology 1998(1):1-5
2005 Lannoo, Michael (Editor) Amphibian Declines: The Conservation Status of United States Species. University fo California Press, Berkeley. 1115pp.
2013 Dodd, C. Kenneth. Frogs of the United States and Canada. John Hopkins University Press, Baltimore, Maryland. 982pp.
2023 Dodd, C. Kenneth. Frogs of the United States and Canada. Second Edition. John Hopkins University Press, Baltimore, Maryland. 1032pp.

THE CENTER FOR NORTH AMERICAN HERPETOLOGY — Accessed: Thursday 30 January 2025 02:32 CT