C
Cretaceous–Paleogene boundary
ConceptMentioned in 2 videos
A geological boundary layer indicating a mass extinction event, commonly associated with the asteroid impact that killed the dinosaurs.
Videos Mentioning Cretaceous–Paleogene boundary

What if Humans Are NOT Earth's First Civilization? | Silurian Hypothesis
PBS Space Time
A geological boundary layer indicating a mass extinction event, commonly associated with the asteroid impact that killed the dinosaurs.

Why The Modern World Make No Sense - Take Back Control Of Your Time & Focus | Cal Newport
Cal Newport
The geological boundary marking the end of the Cretaceous period and the beginning of the Paleogene period, often associated with the extinction of the dinosaurs.