B.Sc. DEGREE EXAMINATION, APRIL 2018
Second Semester
Geology
PALAEONTOLOGY AND GENERAL STRATIGRAPHY
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define Index fossil.
2. Give an example of a Foraminifer.
3. Write the Morphology of Halysites.
4. Give the classes of the Phylum Echinodermata.
5. What is Taxodont dentition? Give example.
6. Write the morphology of Terrebratula.
7. Define a Trilobite. Give an example.
8. Distinguish between Glossopteris and Gangamopteris.
9. State the Law of Uniformitarianism.
10. Define facies.
Sub. Code
7BGE2C1
AFS-0384
2
Wk 7
Part B x 5 25)
Answer all questions, choosing either or
11. Write a brief note on Sponges.
Or
Write a note on Foraminifers and their geological
significance.
12. Write a brief note on class Anthozoa with examples.
Or
Give brief account on morphology of Crinoids.
13. Give account on Pelecypods with examples.
Or
Describe terrebratala and Rhynchonetella.
14. Describe a Trilobite fossil with a typical example.
Give a neat sketch.
Or
Write a short note on Class Graptoloidea with
examples.
15. Write a short note on Geological Time scale.
Or
What is Facies and facies changes. Describe
Walther's law of facies.
AFS-0384
3
Wk 7
Part C x 10 30)
Answer any three questions.
16. Discuss various methods of presentation of fossils.
17. Write an essay on the Phylum Echinodermata, give their
class, order and typical fossil forms.
18. Discuss the phylum Brachiopoda, its class, order and
fossil forms.
19. Give detailed account on the Phylum Arthropoda, class
Trilobita and the fossil forms.
20. Write in detail about the principles of stratigraphy. Add a
note on Correlation.
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