1. 65.5 million years ago – RIGHT NOW
Cenozoic Era The age of Mammals
65.5 million years ago – RIGHT NOW

2. Broken into…
1. Tertiary
More than 95% of the Cenozoic era is included in this period.
2. Quaternary
Only includes that last 1.8 million years until present time.
Cenozoic rocks are more easily to access and less deformed than older rocks

3. MAMMALS ** First large mammals appear Some mammals become extinct
Mammals still evolved and changed during this time.

4. MAMMALS BECOME DOMINANT
Oligocene = hUMANS
Birds and flowering plants also continue to evolve
However, invertebrates, fish, reptiles looked close to what they look like today
Elephants, early horses and many grasses and plants appear
MAMMALS BECOME DOMINANT

5. ** First hominids (human ancestors) appear
Earliest humans appear
Live at the time of Wooly Mammoths

6. Ice Age hits
Humans become dominant