Plourdosteus is an extinct genus of placoderm, which was relatively widespread in Euramerica during the Givetian to Frasnian ages of the Devonian. The name Plourdosteus commemorates the Plourde family at Miguasha.
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