 The closest extant relative is considered to be the genus "Eliomys", which includes the garden dormouse, which was confirmed by a mitochondrial DNA analysis in 2020.It is believed to have been omnivorous, with a generalist diet and with an ability to eat hard foods.Its limb bones are robust and dissimilar in morphology to extant Gliridae, suggesting an unusual form of locomotion, with the proportions being closest to that of the Gran Canaria giant rat.