Dear aspirant,

MSc in Oceanography has an eligibility of having a bachelors degree in Oceanography, Earth Sciences, Fishery Science, Physics, Chemistry or equivalent with a minimum percentage between 50% to 60%.
So getting an admission in MSc Oceanography programme would be difficult but still you could reach out to colleges which offer the course and clarify whether you’re eligible or not.

MSc Paleontology, on the other hand, has no such requirements. Any Bachelors degree would be fine. But to get into some colleges you would have to clear the entrance exam respective to the college.

Hope this helps.