1.6" Dactylioceras Ammonite - Posidonia Shale, Germany

This is a 1.6" wide Dactylioceras ammonite fossil 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. Comes with an acrylic display stand.

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.

Dactylioceras sp.
Holzmaden, Germany
Posidonia Shale
Ammonite 1.6", Rock 5.57 x 3.55"
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