This was pretty much my response. I’ve read a bit about the issue, and my understanding is that the size of the brain compared to the body is somewhat useful as a rough guide to intelligence on a species level, and that the relative sizes of the different specialized regions of the brain are about as important as overall (relative) size. Neither of those factors could be extrapolated from skull fragments, as far as I know.
This was pretty much my response. I’ve read a bit about the issue, and my understanding is that the size of the brain compared to the body is somewhat useful as a rough guide to intelligence on a species level, and that the relative sizes of the different specialized regions of the brain are about as important as overall (relative) size. Neither of those factors could be extrapolated from skull fragments, as far as I know.