But I finally got one today. I tried 2 things, which I do not know if either of them triggered it. First, yesterday I finally updated the time for DST since I usually skip that because it makes me wait another 24 hours for time-based events, and second I went around and played a little. I have been just talking to the guy, getting a fossil, and saving and turning off, but not doing any other activities. Maybe the game doesn't like that?
I don't know. Anyway, here's to hoping I can keep getting fossils.