Casieroides

Casieroides is an extinct genus of prehistoric freshwater ray-finned fish. It contains a single species, C. yamangaensis from the Early Cretaceous Loia Formation of the Democratic Republic of the Congo.

Its taxonomic identity is uncertain, as it has alternatively been classified as a "clupeoid", a pattersonellid, or a salmoniform. The latter classification is now thought to be a wastebasket treatment.