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What Killed the Dinosaurs? Source Credits
Three-dimensional Bouguer gravity anomaly map over the Chicxulub crater
Mark Pilkington, Geological Survey of Canada
Unaltered tektite glass, separated from the Cretaceous-Tertiary ejecta layer, as preserved at the Mimbral locality, Tamaulipas state, Mexico
Courtesy Alan Hildebrand
A 0.32 mm shocked quartz grain from intracrater breccia sample Y6 N14 of the Chicxulub crater
Courtesy Alan Hildebrand
Outcrop of strata crossing the Cretaceous-Tertiary (K/T) boundary at Brazos River, Falls County, Texas
Courtesy Alan Hildebrand
Deccan Plateau
Courtesy NASA JSC Digital Image Collection
Trilobite fossil
Copyright Protection Notice: © Dewitt Jones/CORBIS
A Hypacrosaurus dinosaur fossil from the Cretaceous era
Copyright Protection Notice: © Kevin Schafer/CORBIS
Cretaceous Gryposaurus dinosaur fossil
Copyright Protection Notice: © Kevin Schafer/CORBIS
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