A 2011 genetic study of parrot phylogeny was unable to include Newton's parakeet, as no viable DNA could be extracted. A 2015 genetic study by the British geneticist Hazel Jackson and colleagues included viable DNA from the toe-pad of the female Newton's parakeet specimen. It was found to group within a clade of rose-ringed parakeet subspecies (from Asia and Africa), which it had diverged from 3.82 million years ago. Furthermore, Newton's parakeet appeared to be ancestral to the parakeets of Mauritius and Réunion. The cladogram accompanying the study is shown below: