Solnhofen limestone located in what is now Bavaria, Germany has long been famous for its fossils. Many fine specimens have been unearthed there, not because of its abundance of fossils, they are actually quite rare there, but in part because this stone has been quarried for hundreds of years. This Jurassic rock, which is so hospitable to death’s remains was direly toxic to life. The high salinity and low oxygen found in the shallow lagoons where this limestone and its fossils were formed, trapped its unwary visitors, whose misfortune it was to visit these locales. Much like the fossil of this unfortunate horseshoe crab, which eventually succumbed to this inhospitable environment millions of years ago.