Fossils & Geologic Time Notes - Sciencesaurus
Using the Sciencesaurus on Pages 198-200
Find the following information
Fossils:

Scientific evidence suggest that __________ ___________ have existed on
___________for at least ____________________.

____________ are the remains or _____________________________
________________________________________________________
Answer the following questions based on your reading on
pages 198-200.
Page 198 : Fossil types
 PETRIFIED FOSSILS
o Explain what happens to form petrified fossils:
 TRACE FOSSILS
o Included in this category are:
 CAST FOSSILS
o What are cast fossils?
 MOLD FOSSILS
o Mold fossils are
 COPROLITES:
o What can coprolites reveal about an organism?

o What other type of information can caprolites give scientists besides
what you have listed above?
PAGE 200-GEOLOGIC TIME SCALE
USING THE GEOLOGIC TIME SCALE ON PAGE 200 ANSWER THE
FOLLOWING. REMEMBER THE THE YEARS ARE SHOWN IN MILLIONS OF
YEARS AGO. THE BOTTOM OF THE SCALE IS THE OLDEST RECORDED
GEOLOGIC TIME AND THE TOP IS THE MOST RECENT RECORDED GEOLOGIC
TIME
MYA=million years ago
1. How long ago did the oldest rocks form?__________MYA
2. During which PERIOD does the time scale show that shallow seas covered
large parts of land masses?_______________
3. In which ERA did insects & amphibians develop? _________
4. Between which years did the Appalachian Mountains form? __________
5. During which PERIOD DO THE Rocky Mountains form?
Which are older, the Appalachians or the Rockies?
_________________
6. Which period is called the “AGE OF DINOSAURS”? _____________
7. At the end of which ERA do the dinosaurs go extinct? ______________
8. The Palocene EPOCH marked by the development of what kind of animals?
_______________________________________________________
9. During the __________________ PERIOD the Himalayas & the Alps are
formed.
10. In which ERA do we North America & South America joined together?
________________
11. When did the last ICE AGE end? ___________ yeas ago.
12. In what ERA, PERIOD AND EPOCH are we currently living in?
________________________________________________________
SUMMARY QUESTIONS:
1.
What kinds of information do fossils reveal?
2. How is the Geologic Time Scale different from the way that we kept track of years of time today?