They were unable to survive the catastrophic aftermath of the Chicxulub meteor impact, 66 million years ago. There is also evidence the dinosaurs were already in general decline due to a dramatically variable climate pattern over a long period prior to Chicxulub.
Hi Joyce! I do believe in the fact that a meteorite ended things for these mighty lizards! The impact was so nasty and it caused the death of most life forms on our planet! Whatever survived had to quickly evolve to keep up with very harsh environmental conditions and live on very little food. This eventually caused their sizes to shrink and they became animals that we see today!
When the dinosaurs had fulfilled their purpose, God ended their life. But the Bible is silent on how he did that or when. I am sure that dinosaurs were created by Jehovah for a purpose, even if I do not fully understand that purpose.
Nature got even?