Na, it was Dinotopia...
I thought without Dinos.. but ok, its still to similar
Hmm, I thought it was "Modern Stone-Age Furries"?
Yes, it was. But since they had the artist of Dinotopia as a GoH, and the Flintstones embedded in their cultural memory as the modern "stone age" symbol, they chose to disregard the insignificant 65 Million years between the extinction of the Dinosaurs and the Stone Age