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An amazingly detailed fossil shrimp (Aeger tipularius) from the Solnhofen Limestone in Germany now in the collections of the Houston Museum. During the Late Jurassic, the Solnhofen Limestone was an archipelago at the edge of the Tethys Sea. This included placid lagoons that had limited access to the open sea. When salinity rose high enough that the resulting brine could not support life. Since the lowest water was devoid of oxygen most scavengers were no present. Any organism that fell, drifted, or was washed into the lagoons from the ocean or the land became buried in soft carbonate mud. While fossils are not numerous in the Solnhofen, the preservation is often spectacular.