Carboniferous bony fish

Rhizodontida is an extinct group of predatory tetrapodomorphs known from many areas of the world from the Givetian through to the Pennsylvanian - the earliest known species is about 377 million years ago (Mya), the latest around 310 Mya. Rhizodonts lived in tropical rivers and freshwater lakes and were the dominant predators of their age. They reached huge sizes - the largest known species, Rhizodus hibberti from Europe and North America, was an estimated 7 m in length, making it the largest freshwater fish known.

Megalichthys is a genus of prehistoric lobe-finned fish which lived during the Devonian and Carboniferous periods. It is the type genus of the family Megalichthyidae. The type species is M. hibberti. The species M. mullisoni, named for fossil preparator C Frederick Mullison, is known from the Catskill Formation of Pennsylvania.

Amblypterus (from , 'blunt' and 'wing' or 'fin') is an extinct genus of freshwater ray-finned fish that lived during the Gzhelian (upper Carboniferous) and Cisuralian (lower Permian) epoch in what is now Europe (Czech Republic, France, Germany, Switzerland) and possibly India and Argentina. Potential indeterminate records stretch as far back as the early Carboniferous.

thumb|left|Platysomus gibbosus thumb|left|Fossil of Platysomus circularis in the Field Museum of Natural History, Chicago

thumb|left|Pair