Rhynchodoras is a small genus of thorny catfishes native to South America.

Agamyxis is a genus of thorny catfishes.

Doradidae is a family of catfishes also known as thorny catfishes or talking catfishes.

Doradidae is a family of catfishes also known as thorny catfishes or talking catfishes.

Striped Raphael catfish, Platydoras armatulus, is a catfish of the family Doradidae.

However, other authors find that they are sister to the superfamily Doradoidea, which includes Doradidae, Auchenipteridae, and perhaps Mochokidae.

Centrochir crocodili is the only species in the genus Centrochir of the catfish (order Siluriformes) family Doradidae.

Also, some authors have removed Aspredinidae from Sisoroidea, having found it to be more closely related to Doradoidea (Doradidae, Auchenipteridae, and possibly Mochokidae) with morphological and molecular evidence.

Freshwaters fishes, including remains of fishes of the families like Anostomidae, Osteoglossidae (arapaimas), Characidae, Pimelodidae, Callichthyidae, Ariidae, Doradidae, Loricariidae, Cichlidae and the river stingrays Potamotrygonidae.