Mineral: WIS Horned Coral Fossil Samples
Description: Locality: U.S. Western Interior Seaway Horned Coral Fossil samples recovered from the upper-levels of the WIS Ejecta Deposits. These fossil samples exhibit the same composition features as the material (pictured above). This would suggest that all material exhibiting this specific pitted-melt-fused structure was once a type of organic living organism during the time of the impact event. Note: Horned Coral Fossils were a common marine organism located within the ancient U.S. Western Interior Seaway, and went extinct during the KT Extinction Event (66mya).

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