Board Thread:Questions and Answers/@comment-2601:640:8002:BB44:15F1:6440:4A26:4EA6-20180602210333/@comment-31746702-20180605193552

I dunno, I've played with both before and this didn't happen. Or he used this mod: https://minecraft.curseforge.com/projects/prehistoric-spawns-a-fossils-and-archeology