There are 8 species of paleoniscoids currently described from the Mazon Creek Deposit. While all are relatively rare, the vast majority can be identified as Elonichthys peltigeras and Elonichthys hypsilepus. The other six species are known from very few examples (sometimes only one or two). Almost all Mazon Creek paleoniscoids are juveniles but there are a few larger examples. There are also some isolated body parts of larger individuals. The fact that most Mazon fish are juveniles  an