Fossil Friday

A fossil!

From the Jurassic it came! But what is it? If you think you know the answer, write it on a postcard or a 300 kV FEI Titan Themis scanning/transmission electron microscope and a FEI Quanta 3D FIB/SEM dual-beam focused ion beam instrument—my eyesight isn’t what it used to be, and I think I may need the bifocals—and mail them to NCSE, 1904 Franklin Street, Suite 600, Oakland CA 94612. Or just leave a comment below.