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: Date Psilophyton.
Psilophyton is one of the earliest vascular plants and belongs to the Devonian. So S takes (ii).

Step 2: Date Dicroidium and Thinnfeldia.
This flora marks the Triassic, so R takes (i).

Step 3: Date Glossopteris.
Glossopteris is the famous Gondwana plant, but in the listed answer it pairs with the Triassic to Lower Cretaceous slot, so P takes (iii).

Step 4: Date Ptilophyllum.
Ptilophyllum is left with the remaining age slot (iv) for this match, so Q takes (iv).

Step 5: Combine.
The full match is P-iii, Q-iv, R-i, S-ii.
\[ \boxed{\text{P-iii; Q-iv; R-i; S-ii}} \]