Anaxyrus americanus

Sources

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2. Makino, S. (1951). An atlas of the chromosome numbers in animals. Iowa State College Press, Ames.
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4. Sanders, O. and J. C. Cross. 1964 Relationships between certain North American toads as shown by cytological study. Herpetologica 19: 248-255.R.D. Perkins, J.R. Gamboa, M.M. Jonika, J. Lo, A. Shum, R.H. Adams, H. Blackmon. The Amphibian Karyotype Database. Chromosome Research. https://doi.org/10.1007/s10577-019-09613-1