Translation of "primordial" into Chinese

The most primordial experiences of the audience merged with the stories of the movies.

观众最原始的经历会与 电影的故事情节相结合。

In the cerebrum, the primordial hippocampus developed better than the primordial piriform.

大脑内原始海马较原始梨状区发达, 前者属于原脑皮, 后者属古脑皮。