If you dream that dinosaurs are chasing you, you will feel very scared, which shows that you have a strong dependence on your mother subconsciously, and you are eager to be taken care of by your mother again, and miss the innocence of your childhood.
If you get rid of the chase of dinosaurs in your dream, it means that although you still miss your mother's care in your heart, you have gradually got rid of the sense of dependence and moved towards self-reliance.