Explore Milwaukee County (Click on picture) Milwaukee County, created in 1834 as a territorial county, is derived from a Native American word Mahnawaukee-Seepe meaning gathering place by the river.. Located in southeast Wisconsin, the county seat is Milwaukee.
The Cretaceous-Tertiary extinction event, or the K-T event, is the name given to the die-off of the dinosaurs and other species that took place some 65.5 million years ago. For many years, paleontologists believed this event was caused by climate and geological changes that interrupted the dinosaursâ food supply.
This, again, would have caused a massive change in climate, which dinosaurs would have found hard to adapt to. It is possible that a disease spread through the dinosaur population causing their extinction. Fossils of small mammals have been found from 65 million years ago.he History of Dinosaurs. Dinosaurs were extinct 65 million years ago, and to my mind, our planet Earth was really hit by an asteroid. However, our planet didn't explode, moreover, â¦. Acid Rain caused Dinosaur Extinction. Well, I am Scott and this is my theory.