RAWR! discussion

Had one of the largest extinctions recorded, but what existed during this time?

We've found a fossilized trilobite in a human footprint. Billions of years ago? This disproves the entire fossil record! Why are our textbooks still keeping it the same?

http://s8int.com/phile/page56.html

http://ancientlosttreasures.yuku.com/...

http://ncse.com/cej/2/4/tripping-over...