K-Pg Boundary Layer - Death of the Dinosaurs - Display Card rockinaboxlabrea So the profound

So the profound

ROUGH OPAL (Australia)

the quarry was discovered in 1897 and named for a local sheepherder's cabin which was constructed out of dinosaur bones

from dark to light blue

5 to 2cm) wide

K-Pg Boundary Layer - Death of the Dinosaurs - Display Card rockinaboxlabrea So the profoundBy the end of the Mesozoic, dinosaurs had ruled the Earth for 175 million years, evolving into innumerable forms across the years. All that ended with a six mile long asteroid that wiped out all non avian dinosaurs in one fell swoop. Evidence of this impact can be found in a globally distributed strip of iridium, an element brought to Earth by the asteroid. This specimen is a collection of material from this K Pg Boundary geologic layer, a relic from