16" Limestone Clock With Fossil Fish & Dendrites - Solnhofen Limestone

This is a really cool clock made out of limestone slabs from the Solnhofen Limestone in Germany. There are four slabs of limestone with small (2-3" long) fossil fish on them, and many of the slabs also have dendrites. The dendrite are crystalized manganese that have grown in a tree-like, branching form in between the layers of the rock. People often mistake them for plant fossils, but they are mineral deposits.

The Solnhofen limestone is a famous Lagerstätte in Germany that offer amazing preservation of Upper Jurassic fossils. It is where one of the most famous fossils of all time, Archaeopteryx, was found. The fine grained limestone makes excellent building materials which has led to heavy quarrying over the past two centuries, which has resulted in some amazing fossils being unearthed.

This area represented an archipelago at the edge of a sea. Due to high salt content, the lowest levels in the water column could not support much life and were largely devoid of oxygen. This lack of scavengers on the bottom of the sea led to amazing preservation of the fauna found there.
Eichstatt, Germany
Solnhofen Limestone
Clock 16" wide
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