Cenozoic Epochs Flashcards
1
Q
Paleocene
A
65-55 mya
primate diverging from ancestral stock
Laurasia and Gondwanaland
Plesiadipiforms
2
Q
Eocene
A
55-34 mya
adaptive radiation of strepsirhines
severe drop in temp
Superfamilies: adapoids + omomyoids
3
Q
Oligocene
A
34-24 mya
haplorine radiation
drop in temp forces extinction and southward movement
families: parapithecidae + propriopithecidae
4
Q
Miocene
A
24-5 may hominoid radiation drop in sea level proconsul afropithecus turkanensis dryopithecus sivapithecus sahelanthropus
5
Q
Eons
A
Precambrian: 4. 6 bya - 545 mya
Phanerozoic: 545 mya - present
6
Q
Eras
A
Paleozoic: 545 - 245 mya
Mesozoic: 245 - 65 mya
Cenozoic: 65 mya - present
