Which type of centrum is found in the vertebra of mammals?

Options

A. Amphiplatyan
B. Heterocoelus
C. Procoelus
D. Amphicoetus

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of centrum found in the vertebrae of mammals. A centrum is the central part of a vertebra.

2. **Identifying Types of Centra**: There are different types of centra in vertebrates, including:
- Heterocoelous
- Procoelous
- Acoelous
- Amphicoelous

3. **Focusing on Heterocoelous**: The transcript mentions that the type of centrum found in mammals is heterocoelous. This type has a specific shape and structure.

4. **Describing Heterocoelous Centra**: Heterocoelous centra have a saddled shape with sharp articular surfaces. This unique shape allows for a greater range of motion in the vertebral column, which is essential for mammals.

5. **Conclusion**: Based on the information provided, the type of centrum found in the vertebrae of mammals is **Heterocoelous**.

**Final Answer**: The type of centrum found in the vertebra of mammals is **Heterocoelous**.

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