This Specimen has been sold.
4.5" Iridescent Ammonites Mounted In Shale - Cyber Monday Deal!
This is a spectacular display piece featuring three iridescent ammonite fossils from the Saratov Region of Russia. These ammonites are Middle Jurassic (Upper Callovian Stage) or approximately 161-164 million years old. There are two 2.3" and 1" wide Vertumniceras ammonites and one .9" wide Quenstedticeras ammonite. All of which has been aesthetically mounted in a piece of shale along with an interesting pyrite formation. The ammonite fossils are entirely real and natural, they have just been mounted in the rock.
Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. True ammonites appeared in the fossil record about 240 million years ago. The last lineages disappeared 65 million years ago at the end of the Cretaceous.