I have an Ammonite (about 15-inches in diameter) on my front step. Found it 30 years ago.
Was doing some technical work, and the client (a geologist) spent his day searching for Ammonites instead of supervising us. (Fine by me).
Anyway, found the Ammonite, had it in the truck and showed it off to the client - he hadn’t found any yet. Told him we had found it on that ridge over yonder. He spent the next three days climbing around that ridge.
Actually, we had pulled into the Big Boy parking lot in town, and around back was a stone planter box that was sort-of falling apart. One of the “stones” was this big ammonite.
I figured the wall was already falling apart, it was in the back where nobody saw it, so a few more rows of the wall getting a bit more jumbled wouldn’t matter.
Near Fort Worth, Texas. (I’m guessing the statute of limitations on that sort of thing has run out.)
Oh. Our client never did find one.
“Try looking over there, at least the light is better”
I found bucket loads of ammonites in the dry bed of Benbrook Lake during that bad drought we had a few years ago.