1. 
   Palaeonisciformes
   (from the article `fish`) ...fishes they had peculiar looking jaws and tails. Their tails were heterocercal. On their bodies were thick ganoid scales that abutted each other, ... The most numerous and widespread Paleozoic chondrostean fishes belong to the order Palaeonisciformes. The earliest known ...
   Found op http://www.britannica.com/eb/a-z/p/6
   
   
2. 
   Palaeonisciformes
   The Palaeonisciformes is an order of Actinopterygii. They are carnivorous and have a single large dorsal fin.
   Found op http://www.probertencyclopaedia.com/browse/BP.HTM
   
   
3. 
   Palaeonisciformes
   Palaeonisciformes is an extinct order of early ray-finned fishes (Actinopterygii). It is not a natural group, but is instead a paraphyletic assemblage of the early members of several ray-finned fish lineages. It has traditionally encompassed most Paleozoic actinopterygians, except those that exhibi...
   Found op http://en.wikipedia.org/wiki/Palaeonisciformes
   
   

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