Geologic Time Scale Scavenger
Hunt
Search the web for the answers to these questions on the Geologic Time Scale.
Name:___________
____________
1.
Define Index Fossil
2. When did primordial oceans form?
3.
When did plant life begin to appear on Earth?
4.
When did animal life begin to appear in the oceans?
5.
When did the first land animals evolve?
6.
When did humanlike life appear on Earth?
7.
a.
For the first three billion years, the highest form of life on Earth was ___________________________.
b.
During the ______________________ period the first fish appeared.
c.
During the ______________________ period the first reptiles appeared.
a.
__________________ represents the time on Earth when life did not exist.
b.
During the ___________________ Epoch chimpanzee and hominid lines evolved.
c.
During the ___________________ Period the first flowering plants evolve.
8.
9.
a.
In which time period were the first insects and vascular plants found on land?
______________________________
b.
In which time period were the first mammals found?
___________________________________________
10. Locate the Permian Period (280 million years ago). List two of the animals that are illustrated.
________________________________
11.
12.
a.
The Earth is about ____________________ years old.
b.
The age of rock in years is called ____________________ age.
During the Earth's 4.6 billion years there have been ____________ "Ice Eras".
13.
a.
Conifers first appeared during the _____________________period.
b.
Invertebrates were supreme during the _____________________ period.
a.
Early horses appeared during the ________________ epoch.
b.
Permian period was when the appearance of ________________ began.
c.
Earliest known vertebrates appeared during the _________________period.
14.
15. What happened in the Triassic Period? ______________________
16.
a.
____________________ are used as guides to the age of rocks in which they are preserved.
b.
Pecten gibbus is an index fossil of the __________________ period.
17. When and in which time period did the mass extinction of the dinosaurs occur? ________________________________
18.
a.
The ___________________ period was 3800 to 2500 mya.
b.
The ___________________ period was 4500 to 3800 mya.
19. The Cenozoic Era is known as the ____________________________.
20. Tell us about the animals of this time period… ______________________________________________________
21. List a few animals of the Miocene ________________________________________________