Which one of the following is categorised under living fossils : -

Options

A. Pinus
B. Cycas
C. Selaginella
D. mint

Answer

To determine which of the given options is categorized as a living fossil, we can follow these steps:

### Step 1: Understand the Concept of Living Fossils
Living fossils are organisms that have remained relatively unchanged over long geological periods and closely resemble species known from the fossil record. They provide insight into the evolutionary history of life on Earth.

### Step 2: Analyze Each Option
1. **Binus**: This term does not correspond to a known organism typically classified as a living fossil.
2. **Cyclus**: This is a genus of plants that includes cycads, which are often referred to as living fossils due to their ancient lineage and resemblance to prehistoric species.
3. **Silaginella**: This is a genus of plants known as clubmosses, but they are not commonly referred to as living fossils.
4. **Mint**: This refers to a family of herbs (Lamiaceae) that are not considered living fossils.

### Step 3: Identify the Correct Answer
Based on the analysis, **Cyclus** is the only option that fits the criteria of being a living fossil.

### Conclusion
The correct answer is **Cyclus**.

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