Mini ature was described in 2019 by the herpetologist Mark Scherz and colleagues on the basis of an adult specimen collected in Andohahela National Park in Anosy in Madagascar in 2004.

[1] The name Mini ature is a pun on the word miniature, referring to the extremely small size of the species.

Although Mini ature is an extremely small frog and has a snout–vent length of just 14.9 mm (0.59 in), it is the largest species in its genus.

[1] After 14 years of preservation in 70% ethanol, the holotype of the species had a light brown back, turning nearly beige at the sides.

It can be differentiated from M. mum by the presence of its maxillary and premaxillary teeth, and from M. scule by its proportionally smaller nasals and braincase.

It can be told from most Stumpffia by its maxillary and premaxillary teeth, and from all of them by its curved clavicles (long bones between the shoulder blade and breastbone) and the loss or fusion of the second carpal.

[1] The only known specimen of Mini ature was collected from the Andohahela National Park in Madagascar, but its total distribution is unknown.