I'm an atheist, and I inform you that you got your facts wrong. Atheists go with sciences side. We believe that the Earth was created by the Big Bang. Dinosaurs were just the strongest creatures back then. After the meteorite hit earth, the continents seperated, causing temperature changes, and the human race was born. There were everywhere on earth, having different characteristics (Black/white/yellow skin etc). So our facts are more believeable.
About Christianity, Adam and Eve did not turn/multiplicated into billions of people. They didn't even excist. It's just a tale.
To prevent drama, I'm going to decline this.