Match an Era with the Description
Match an Era with the Description
PC-Precambrian
M-Mesozoic
Age of Dinosaurs
PC-Precambrian
M-Mesozoic
Age of Dinosaurs
P-Paleozoic Group the descriptions from
C-Cenozoic oldest to most recent
P-Paleozoic Group the descriptions from
C-Cenozoic oldest to most recent
Age of Fish
Age of Fish
Age of Mammals
Appalachain Mtn. range begin to
form
Atmosphere forms
Age of Mammals
Appalachain Mtn. range begin to
form
Atmosphere forms
First birds
Collisions of Laurasia and
Gondwana form major mtn.
ranges
Earth’s crust forms
First birds
Collisions of Laurasia and
Gondwana form major mtn.
ranges
Earth’s crust forms
forms
First amphibians
First amphibians
First cells form
First cells form
First multicellular organisms form
First multicellular organisms form
First reptiles
First reptiles
Flowering plants evolve
Great Lakes formed during Ice
Age
Human Civilization
Flowering plants evolve
Great Lakes formed during Ice
Age
Human Civilization
Life found only in seas
Life found only in seas
Oceans form
Oceans form
Pangaea breaks up
Pangaea breaks up
Pangaea forms
Pangaea forms
Rockies form
Rockies form
Saber -toothed cats
Saber -toothed cats
Mammals are all small
Mammals are all small
Answer Key
Earth’s Crust
Atmosphere Forms
Oceans Form
PC
Life only in Seas
First Cells
Multicellular Organisms
Age of Fish
First Amphibians
Appalachain Mts
P
First Reptiles Evolve
Collision of Eurasia and Gondwana
Pangaea Forms
Age of Dinosaurs
Mammals are all small
First Birds
M
Pangaea Breaks
Flowering Plants
Age of Mammals
Rockies form
Saber-toothed cats
Great Lakes during ice age
Human Civilization
C