Just mentioned on BBC News.

Joseph Barbera, one half of the team behind such cartoon classics as The Flintstones, Yogi Bear, Scooby-Doo and Huckleberry Hound, has died, aged 95.

He died of natural causes at home with his wife, Sheila, at his side.

With William Hanna, Barbera founded Hanna-Barbera in the 1950s, after the pair had earlier worked on the Tom and Jerry cartoons at MGM studios.

"Joe will live on through his work," said Warner Brothers chairman and CEO, Barry Meyer....

http://news.bbc.co.uk/1/hi/entertainment/6191999.stm
He worked on all the classics.