Putillosaurus sennikovi was described as a genus and species of synapsid which existed in Russia during the Lower Triassic, but the description was based solely on a premaxilla, and is considered a nomen dubium.
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