Question

Identify the correct arrangement of periods of Palaeozoic era in ascending order in geological time scale

• A. Cambrian $\to$ Devonian $\to$ Ordovician $\to$ Silurian $\to$ Carboniferous $\to$ Permian
• B. Cambrian $\to$ Ordovician $\to$ Silurian $\to$ Devonian $\to$ Carboniferous $\to$ Permian
• C. Cambrian $\to$ Ordovician $\to$ Devonian $\to$ Silurian $\to$ Carboniferous $\to$ Permian
• D. Silurian $\to$ Devonian $\to$ Cambrian $\to$ Ordovician $\to$ Permian $\to$ Carboniferous

Answer 1

Answer: (B)

Palaeozoic era is the era of ancient life. The correct arrangement of periods of this era is Cambrian $\to$ Ordovician (age of invertebrates) $\to$ Silurian $\to$ Devonian (age of fishes) $\to$ Carboniferous (age of Amphibians) $\to$ Permian