Question

Match the plant fossils in Column 1 to the corresponding geological ages in Column 2.

• A. P-iv; Q-iii; R-i; S-ii
• B. P-iii; Q-iv; R-i; S-ii
• C. P-ii; Q-iii; R-ii; S-i
• D. P-iv; Q-i; R-iii; S-ii

Hint:

Glossopteris is a prominent fossil from the Permian period, while Psilophyton is from the Devonian, and Dicroidium is typical of the Triassic to Lower Cretaceous periods.

Answer 1

The Correct Option is B

Step 1: Identifying Glossopteris.
Glossopteris is a well-known fossil plant from the Permian period. It is part of the ancient Gondwana flora. Hence, Glossopteris corresponds to option (iv).

Step 2: Identifying Ptilophyllum.
Ptilophyllum is typically associated with the Triassic period. It is a type of coniferous plant found in the Mesozoic. Hence, Ptilophyllum corresponds to option (iv).

Step 3: Identifying Dicroidium-Thinnfeldic.
Dicroidium and Thinnfeldic are fossil plants found primarily in the Triassic to Lower Cretaceous period. Therefore, this corresponds to option (iii).

Step 4: Identifying Psilophyton.
Psilophyton is a plant genus that belongs to the Devonian period. It is one of the earliest known vascular plants. Hence, Psilophyton corresponds to option (ii).

Step 5: Conclusion.
The correct matching is:
- P (Glossopteris) corresponds to (iii) Triassic to Lower Cretaceous
- Q (Ptilophyllum) corresponds to (iv) Permian
- R (Dicroidium-Thinnfeldic) corresponds to (i) Triassic - S (Psilophyton) corresponds to (ii) Devonian
Thus, the correct answer is (B).
\[ \boxed{\text{P-iii; Q-iv; R-i; S-ii}} \]