Fossils on the streets of New York

New York's urban fossil sites include very popular buildings, such as Tiffany's main door, on the 5th Avenue. The frame of this door is made of a red limestone with tiny crinoid fragments. Very close to this site, the façade of Saks also hides small marine fossils. If you look at this rock closely, you can find many skeletal fragments, particularly rugose corals.