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
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