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.
like dinosaurs and mosasaurs, became extinct at the end of the Cretaceous about 65 million years ago. Like dinosaurs, there were many species of pterosaurs. Fossils of one of these pterosaurs, Pteranodon, have been recovered from the Hell Creek Formation. Pteranodon (âtoothless flyerâ) was gigantic.