5.2" Devonian Ammonite (Anetoceras) With Trilobite Heads

Devonian Ammonite (Anetoceras) With Trilobite Heads #110683

This is a 5.2" wide specimen of the Early Devonian ammonite Anetoceras quarried in the Anti-Atlas Region of Morocco. The ammonite has been painstakingly prepared from the hard limestone matrix that it was found. There are 6 Phacopid trilobites heads naturally associated with it.

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