Agenda & Bell work Reading, Notes, Work on Timeline
12/14 DO Students will be able to describe how the earth changed during the Tertiary period. DQ What does Cretaceous mean? What animal group appears in the Mesozoic that will replace the dinosaurs? 3.What event was most likely the cause of dinosaur extinction? What does Cretaceous mean?
DQ What does Cretaceous mean? The word Cretaceous means chalk. Name three dinosaurs that lived in this time period. Some common dinosaurs from the Tertiary were the Triceratops, T. rex, and Iguanodons. What event was most likely the cause of dinosaur extinction? A giant asteroid impacted the earth forming the Yucatn Peninsula. Cenozoic Era Tertiary Period 65.5-2.6 mya
Diversification of Mammals Birds flourished in the skies as the holdouts of the dinosaur age Grasslands emerge and becomes the most successful plant on Earth Herds of grazing mammals are seen Kelp evolves, sea otters,& dugongs (related to the elephant) Megalodon appears as the biggest shark of all (15meters long) Two-footed Hominins split from chimpanzees Dugongs- a marine mammal related to the elephant Kelp Forest Cenozoic Era Quaternary Period 2.6 to present mya
Age of Humans Whales and sharks rule the seas Massive mammals evolve such asmammoths, rhino and bison with shaggy coats adapted to the ice age Ice ages are the result of the Earths wobbly orbit around the sun Great Lakes are formed due to glaciation