If God made the dinosaurs, then did he intentionally wipe them out?
God created the universe, and all the laws that govern it. There is wide speculation on what caused the demise of the dinosaurs. A common thought is a meteor strike off the Yucatan peninsula in the ocean threw up enough debris that it caused a massive change in climate.
It is possible that God intervened to wipe out the dinosaurs, and it is also possible that they were simply unlucky. The Bible doesn't mention them at all as the history it is concerned about is much, much later, so we'll have to wait to ask Him.