11.2" Dactylioceras Ammonite Cluster - Posidonia Shale, Germany

Dactylioceras Ammonite Cluster - Posidonia Shale, Germany #242681

This is a 11.2" wide cluster Dactylioceras ammonite fossils from the Posidonia Shale of Germany. Ammonites from this location have been compressed and are preserved on a black slate in a partially pyritized state. It with an acrylic display stand but a wall hanger has also been added to the back of the stone.

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

What an ammonite would have looked like while alive.

More about ammonites