Atelopus gigas Coloma, Duellman, Almendáriz, Ron, Terán-Valdez & Guayasamin, 2010

Giant stubfoot toad (proposed)



Taxonomy & Nomenclature



Conservation Status


Last record: 1970

IUCN RedList status: Critically Endangered (Possibly Extinct)



Colombia & Ecuador


Biology & Ecology










Original scientific description:

Coloma, Luis A. et al. (2010). Five new (extinct?) species of Atelopus (Anura: Bufonidae) from Andean Colombia, Ecuador, and Peru. Zootaxa 2574: 1-54.


Other references:

IUCN SSC Amphibian Specialist Group. (2017). Atelopus gigas. The IUCN Red List of Threatened Species 2017: e.T18435526A56602058. Downloaded on 11 December 2017.

Jaynes, Kyle E. et al. (2022). Harlequin frog rediscoveries provide insights into species persistence in the face of drastic amphibian declines. Biological Conservation 276: 109784.

Rödder, D., Kielgast, J., Bielby, J., Schmidtlein, S., Bosch, J., Garner, T.W.J., Veith, M., Walker, S., Fisher, M., Löetters, S. (2009). Global Amphibian Extinction Risk Assessment for the Panzootic Chytrid Fungus. Diversity 1(1): 52-66.

Ron, S. R. and Merino, A. (2000). Amphibian declines in Ecuador: overview and first report of chytridiomycosis from South America. FrogLog 42: 2-3.


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