These taxa were previously lumped in acknowledgement of phylogenetic review of brown bears in eastern Asia, which show they form a unified clade with Alaskan brown bears (Hirata et al. 2013). This reflects what has been increasingly understood among Beringian immigrations into North America, as exhibited amongst over carnivorans species, big and small (Colella et al. 2021, Puckett et al. 2015, Reding et al. 2021, Sacks et al. 2018). However, there have not been formal revisions that unify these taxa as one - just the acknowledgement that they form a distinct clade. These are taxa that are still written about in current research and literature; until a formal amendment is conducted, they should probably be maintained as distinct on iNaturalist.