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The Solnhofen Lagerstatten Unparalleled Detail in Jurassic Preservation
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Solnhofen, Bavaria, Germany
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The Solnhofen Plattenkalk Cm scale beds of micrite Extremely fine Deposited in lagoon Probably hypersaline Possibly anoxic Little native fauna Fossils were washed into lagoon
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Free-swimming Crinoid
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Crustacean
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Small Crocodillian Reptile
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Dragonfly
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Horseshoe Crab
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A dance of death
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Archaeopteryx – the Berlin Specimen
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Archaeopteryx Originally thought to be a “typical” dinosaur Recognition of feathers First bird? Could it fly? Probably not a true bird Newer finds in China are much more directly linked to birds
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Terminal Cretaceous Extinction: The K-T Boundary Mass extinction at the end of the Cretaceous Estimates vary from 15-40% of species Marine organisms – discussed previously Dinosaurs (but you knew that) Many non-dinosaur reptiles Many amphibians Many mammals Plants???? Requires further study What was the cause?
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