The family Peramuridae is a possible ancestor of early therians. The only certain representative (Peramus) lived in the Late Jurassic and Early Cretaceous.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0