Pterygotus is a genus of marine arthropod within the extinct order eurypterida (or Sea Scorpion), and includes some of the largest species of this group.
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