3.65" Fossil Triassic Ammonite (Ceratites) - Germany

This is an unusual, Middle Triassic ammonite (Ceratites sublaevigatus) from the Muschelkalk Formation in Germany. It's 3.65" across and the base of the rock has been cut flat so that it stands up nicely without the need for a display stand. There is a small patch of restoration on the edge.

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. Ammonites appeared in the fossil record about 240 million years ago and they barely survived several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

Ceratites sublaevigatus
Wurzburg, Bararia, Germany
Muschelkalk Formation
3.65" across
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