Question

About how many years ago was Dinosaurs extinct from the earth

How old is the earth

Answer 1

Many Theories, No Proof. Dinosaurs roamed the earth for 160 million years until their sudden demise some65.5 million years ago, in an event now known as the Cretaceous-Tertiary, or K-T, extinction event
and
earth is 4.543 billion years old

Answer 2

I am pretty sure the earth is billions of years old. Dinosurs were extinct millions of years ago.