doesn't matter if you were thinking freshwater or marine...the argument you were making in terms of reviewing NAmerican ancient fishes from an evolutionary standpoint is much more complex than that. like Richard said, no review (accurate or otherwise) is necessarily needed for arguing the case of this particular merger as it's essentially sister groups of fishes, not much to do with which one is older, etc etc.
one could add or drop hagfishes and lampreys based on jaws and bony skeletons as well...so you see that could go on and on.--
--solomon
Sorry about the derail there; it was more in regards to bobtan's statement. I'll just leave it be since it doesn't really pertain to the goal of this thread.