This Specimen has been sold.
2.7" Cretaceous Ammonite (Craspedodiscus) Fossil
This is a very displayable specimen of Craspedodiscus discofalcatus from the Volga River region of Russia. It has been nicely prepared from the large block of solid limestone and displays aesthetically on a flat surface. The limestone around the ammonite has been textured and the remaining limestone has been polished to a glossy finish.
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.