Baird, S. F. (1850 "1849"). Revision of the North American tailed-batrachia, with descriptions of new genera and species. Journal of the Academy of Natural Sciences of Philadelphia. Series 2, 1: 281–294.
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Baird, S. F.
1850 "1849"
Revision of the North American tailed-batrachia, with descriptions of new genera and species
Journal of the Academy of Natural Sciences of Philadelphia