Which one of the following stratigraphic units belongs to the Cretaceous?
Show Hint
- Lameta Formation
- Talchir Boulder Bed
- Fenestella Shale
- Kasauli Formation
The Correct Option is D
Solution and Explanation
The Lameta Formation (also called Infratrappean Beds) occurs below the Deccan Traps in central India and represents sedimentary deposits from the Late Cretaceous period.
Step 2: Comparing the options.
(A) Lameta Formation: Late Cretaceous (Maastrichtian) — famous for dinosaur fossils.
(B) Talchir Boulder Bed: Lower Permian, part of the Gondwana sequence.
(C) \textbf{Fenestella Shale:} Lower Carboniferous age.
(D) Kasauli Formation: Miocene, part of the Siwalik Group.
Step 3: Conclusion.
Hence, the Lameta Formation belongs to the Cretaceous period.
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