Interesting,
However I do not see any religious aspects here.
It simply looks like a breeding ground for crocodiles.
All the other animals carved are typical food for the predator. The T-stone walls are similar height to hold a platforms for people.
This may have been a way to control crocodile population. Could have been for entertainment. Or it was a crocodile farm for meat.
My opinion, MikeB.
Something is not right. This message is just to keep things from messing up down the road