Cooyoo australis is a primitive ichthyodectid found in Cretaceous strata of Queensland, Australia. As with all other ichthyodectids, it was a predator of smaller fish.
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