I came across this one while surfing the net:
http://www.youtube.com/watch?v=oJfBSc6e7QQ&feature=youtu.be
Curious, as it's not something that one generally thinks of. Well, I have, but never to the point of making a video....
The point of it is this: The earth is expanding, which explains the similarities between fossils, etc.
Note that Pangea and the theory of Continental Drift also explains the same thing, the author of the video has merely taken the Big Bang theory and applied it to it's constituent parts, on a much reduced time scale.
Now the author doesn't explain (at least in his video) where the extra earth mass is coming from, or why it should be expanding, but these are merely trifles, if you're curious and need further explanation he does so via simple colorful cartoons at his website: http://www.nealadams.com. And if you were, even for a second, thinking he might be onto something the website should persuade you otherwise ...