Post-Cambrian giant fish (Introduction)

by David Turell , Sunday, June 15, 2014, 01:33 (3597 days ago)

At about 420 myo a meter-long fish with a big big jaw:-http://www.newscientist.com/article/dn25718-first-predator-fish-crushed-armoured-prey-in-its-jaws.html-The theory is now tht vertebrates originated in South china.