The item is made from shale it contains a perfect centered fossil in the middle. I acquired it from a woman who was having an estate sale who told me that the man who bought it at auction paid $500 to get it fortunately I walked away only spent 75 lol.
8 5/8 inches by 7 7/8
An Ammonite Fossil Section, Cretaceous Period
the rectangular shale panel with a fossil at the centre and another smaller at the side,
8 5/8" x 7 7/8".
Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which compose the clade Coleoidea) than they are to nautiluses (family Nautilidae), which they resemble.[1][2] The earliest ammonoids appeared during the Emsian stage of the Early Devonian, around 410-408 million years ago, with the last species vanishing during or soon after the Cretaceous–Paleogene extinction event approximately 66 million years ago. They are often called ammonites, which is most frequently used for members of the order Ammonitida, the only remaining group of ammonoids from the Jurassic up until their extinction.