This may sound silly, but is it too late to start schooling/career for palaentology at the age of 25? I have a B.A. in music, drama, and education, and I also have my B.Ed. Just researching of some different career paths.

Of course not, you have plenty of time!

agreed but you will most likely have to go back to school and do sciences and then do a biology/sceince based undergraduate degree.