Yeah, TJ, they can. Their swim bladder is lines with capilaries that can extract 02 from the air it gulps down there.
Gar and Bowfin are among the only freshwater fish left that swam with dinosaurs. Im sure there are others, but a quick peruze of Wikipedia didn't let me know any more.
The Lungfish, though, is the one you really wanna cite in a darwin argument. he brings even more to the table than the flying spaghetti monster. While both are miracles of evolution, the lungfish isn't quite so silly.
-SB
