Yes, that's right. There are quite a few Pokemon that used to be around during prehistoric times, but are no longer living among us today. And, naturally, there are many researchers and archaeologists dedicated to studying Pokemon fossils from the ancient past in order to try to better understand the Pokemon that once predominantly roamed the world. Some of them have even created special machines that can revive these Pokemon using the fossils left behind...yes, the world of Pokemon archaeology has quite a fascinating taste to it when you think about it!

[...And yes, he really did just casually say that they have the technology to bring dinosaurs back to life where he's from, you're not imagining that.]