This genus formerly included only a single species, the golden-tailed sapphire. A molecular phylogenetic study published in 2014 found that the genera Amazilia and Lepidopyga were polyphyletic.[5] In the revised classification to create monophyletic genera, Chrysuronia was broadened to include species that had previous been placed in Amazilia, Hylocharis and Lepidopyga.[6][7]
^ abGill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2024). "Hummingbirds". IOC World Bird List Version 14.2. International Ornithologists' Union. Retrieved 30 August 2024.