Tjaernoeia is a genus of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia. Tjaernoeia is the only genus in the family Tjaernoeiidae.
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