First Lab Exam
Geology 105 Spring 2009
1. Identify the organism at the end of the
arrow.
Name
2. Identify this organism
Describe this organism’s life habit in as much
detail as you can. What is your evidence?
Phylum?
Most probable age?
How did it eat?
3. Identify this organism
4. Identify this organism
How did it eat?
Probable age?
Probable age?
5. Identify this organism.
6. Identify this organism
Skeletal material?
What is its life habit?
Life habit (be as specific as you can)?
How is it preserved?
7. Identify this organism
8. Identify this organism.
Skeletal material?
Probable age?
Name two close relatives
Probable life habit?
9. Phylum?
10. Identify this organism.
Identify by order
Why is only part of the organism here?
How did it eat?
11. Identify two organisms in this slab.
12. Identify this organism.
Is this sample an accumulation of dead organisms
over time, or a catastrophic burial of living
creatures? How do you know?
How does this organism eat?
13. Identify this organism.
14. Identify this organism.
Describe this organism’s life habit in as much
detail as you can. What is your evidence?
Skeletal material??
15. Identify two organisms in this slab
16. Identify this organism.
Probable age?
Phylum?
Preservation?
How does it eat?
17. Identify this organism. Explain your
reasoning.
18. Identify this organism.
Describe its life habit and feeding in detail.
Probable age?
19. Here is a picture of an interesting organism you have not seen before. It belongs to one of the phyla
you studied. Suggest three possible candidates. For each phylum you suggest, note at least two
similarities to that phylum, and suggest two other characteristics you would look for in this organism to
see if it belongs to that phylum
a. Phylum A:
Similarities:
Other characteristics to look for:
b. Phylum B:
Similarities:
Other characteristics to look for:
c. Phylum C:
Similarities:
Other characteristics to look for:
20. XXXXXXXX are an enigmatic Paleozoic group.
What phylum could XXX belong to? Suggest three possible candidates. For each phylum you suggest,
note at least two similarities to that phylum, and suggest two other characteristics you would look for in
a XXXX to see if it belongs to that phylum.
a. Phylum A:
Similarities to XXXX:
Other characteristics to look for:
b. Phylum B:
Similarities to XXXX:
Other characteristics to look for:
c. Phylum C:
Similarities to XXXX:
Other characteristics to look for: