Parasemionotus is an extinct genus of prehistoric bony fish that lived in the Induan age of the Early Triassic epoch in what is now Madagascar. It is the name giving genus of the family Parasemionotidae and the order Parasemionotiformes. This clade includes, among others, the genera , Candelarialepis, Jacobulus, Lehmanotus, , Stensioenotus, , Thomasinotus, Watsonulus, and possibly additional genera like . Parasemionotiforms had a global distribution during the Early Triassic. Species of this family are found in Greenland, Madagascar, Canada, India, China, United States, and possibly Australia.