See also: C-T Extinction
The Cretaceous-Tertiary Transition, or the Cretaceous-Paleogene Boundary, is a mass extinction event that happened around 66.038 mya. It caused many fatalities to every single group but reptiles, amphibians, mammals, birds, fish and invertebrates. The pulpy animals and reptilians received the most damage. Mammals survived but 60% died out, including Nemegtbaatar and Alphadon.
Extinctions[]
Main article: Cretaceous extinctions
Explanation[]
66 million years ago a massive asteroid hit earth and killed off the dinosaurs. It was 7 miles wide, as large as New York City and as large as Mount Everest. It hit in the Yucatan Peninsula in Mexico. It hit with the equivalent of 1 billion Hiroshima bombs and released 8 billion tons of TNT. 11 seconds after impact radiation went in every direction and incinerated everything. The debris from the asteroid went right into the atmosphere and rained down everywhere causing massive wildfires. The asteroid struck with so much force that it triggered earthquakes that reached 13.0 on the Richter scale in all directions. A huge shockwave took out everything in North America. In Europe the scorching heat and debris caused havoc while ginormous tsunamis caused by the asteroid took over as well causing Europe to be flooded. In India the Deccan traps would be going at the equivalent of 185 billion Yellowstone eruptions rendering it uninhabitable.