This is a well preserved fossil lobster of the species Eryma modestiformis from the Upper Jurassic Solnhofen Limestone in Germany. The Sonhofen limetones is a famous Lagerstätte in Germany that offer amazing preservation of Upper Jurassic fossils. The fine grained limestone makes excellent building materials which has let to heavy quarrying over the past two centuries. The fossils that are actually quite rare in the formation are found as a by product of the stone quarrying.
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