Amphibia first appeared in which of the following period?

Options

A. Permian
B. Carboniferous
C. Devonian
D. Silurian

Answer

To determine when Amphibia first appeared, we can analyze the geological periods mentioned in the question. Here’s a step-by-step solution:

### Step 1: Understand the Geological Periods
- The question provides four geological periods: Permian, Carboniferous, Devonian, and Silurian.
- Each of these periods has distinct characteristics and significant biological events.

### Step 2: Analyze Each Option
- **Permian**: This period is known for the origin of conifers and is not associated with the emergence of amphibians.
- **Carboniferous**: This period is significant for the development of mosses and the diversification of plant life, but amphibians did not originate here.
- **Devonian**: Often referred to as the "Age of Fishes," this period is crucial because it is when amphibians first appeared. They evolved from lobe-finned fishes during this time.
- **Silurian**: This period is known for the emergence of the earliest spore-bearing plants, not amphibians.

### Step 3: Identify the Correct Answer
Based on the analysis, the correct answer is the **Devonian period**, as it is the time when amphibians first appeared.

### Final Answer
Amphibia first appeared in the **Devonian period**.

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