Ammonites from the Museum’s collection
Photo by Denis
These aren’t just ammonites, they’re scaphites, a particular type of ammonite. (You can tell from the flat part in the middle of the coil, instead of it coiling around evenly. See how it starts to straighten out before ending in a hook? Also, notice the tiny bump in that flat part? [See the specimen in the second row to front, all the way to the left. Probably easiest to see.] That indicates they were probably females.)
Those are what I was researching while I interned at the AMNH. So, there’s a good chance I handled those very specimens! =]
(And my thanks again to Dr. Landman, who was a really great curator to work with and an all-around nice guy.)