Why are these coprolites flashlight excrement so remarkable

If anyone had the guts to guess fossilized excrement, they would be right. What is being described as possibly the longest piece of ancient poop ever found will be sold at an auction on Saturday at the I. M. Chait Gallery in Beverly Hills, Calif.

According to the gallery's catalogue, this "enormous and rare" specimen first appeared between the Miocene and Oligocene eras - - that's roughly 20 million years ago. Priced at $8,000 to $10,000, the fossilized poop boasts an "even, pale brown-yellow coloring" and is about 40 inches in length.