Don't get too excited, it's sadly long dead, but I figured that all of you would still get a kick of reading about the baddest Monster Fish that ever lived!
Some quotes:
Read the article here: http://www.news.com.au/couriermail/story/0,23739,20843388-953,00.html
Some quotes:
The Chicago researchers found that it could tear apart its food with a force of 500kg per 2.5cm.
Only Tyrannosaurus rex had more powerful jaws, experts believe.
"This thing was capable of biting anything it came across in half," said study co-author Mark Westneat, associate curator of zoology, fish evolution and biomechanics at the Field Museum.
Read the article here: http://www.news.com.au/couriermail/story/0,23739,20843388-953,00.html

I would'nt doubt the ability to trace lineage to fish like snakehead's or aimara ... even though they show it as a kind of shark looking fish..