[14] In 2015/2016, Peloso et al.[15] re-analysed the genetic relationships of the Microhylidae using partial genomic data.

They found strong support for these groups being ecologically distinct, non-synonymous sister taxa.

In early 2018, Bellati et al. moved the species Rhombophryne alluaudi to Plethodontohyla based on examination of the type material;[18] specimens in phylogenetic analyses that had been referred to as R. alluaudi in fact belong to an undescribed species of Rhombophryne.

[3] Rhombophryne minuta and R. longicrus by contrast have unusually long limbs, and it has been argued that they probably are more terrestrial and saltatorial than the other members of the genus.

[22] Two adult R. testudo individuals were found together with 18 putative offspring in a burrow by a stream at the edge of Lokobe Reserve on Nosy Be, at the end of the dry season.

So far, the advertisement calls of eight species have been published: R. botabota,[2] R. minuta,[24] R. mangabensis,[25] R. matavy,[4] R. testudo,[24] R. nilevina,[7] R. coronata,[26] and R.