FossilsByJosef on eBay sells a wide range of fossils, from small ammonite lots priced under $20 to rare finds like a Erbenochile erbeni trilobite fossil at $1,600. Shoppers can use promo code “FOSSILSSALE15” for an extra 15% off when buying 3 or more items, for up to a $10 discount. Deal ends September 1. Shop Now at eBay