The Maharal writes in Parshas Beraishis or Noach that with the temperature of the water heat cooking the bones and earth, it throws off the the calculation of the carbon dating of fossils.
I *highly* doubt the Maharal wrote *anything* about carbon dating.
In addition, there are two other salient points to mention:
1. Heat and/or pressure will not change the rate of carbon decay, so the idea that the heat or pressure of the water would affect carbon dating is fallacious.
2. You cannot use carbon dating for dinosaur fossils for two reasons:
a. They are too old. Carbon dating doesn’t work for objects that are millions of years old.
b. It only works on organic materials. Fossils (which are all that remain of dinosaurs) are not organic.
The Wolf