Bayomesasuchus is an extinct genus of peirosaurid mesoeucrocodylian known from the early Late Cretaceous Cerro Lisandro Formation of Neuquén Province, western central Argentina. It contains a single species, Bayomesasuchus hernandezi. Even though it is known from relatively fragmentary remains, it represents one of the most basal peirosaurids.
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