Orthognathous face occurs in

Options

A. Cro-Magnon man
B. Gorilla
C. Ramapithecus
D. Homo habilus.

Answer

To determine which of the given options features an orthognathous face, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Orthognathous":**
- Orthognathous refers to a facial structure where the jaws do not project forward. This is typically associated with a flatter face.

2. **Analyze the Options:**
- We have four options to consider: Cro-Magnon man, Gorilla, Rheumapithecus, and Homo habilis.

3. **Evaluate Each Option:**
- **Cro-Magnon Man:** Known for having a well-developed skull with a flatter face and a prominent forehead. They are characterized by an orthognathous face.
- **Gorilla:** Gorillas have a prognathous face, meaning their jaws project forward.
- **Rheumapithecus:** This is an early primate, and while specific details about its facial structure may vary, it is generally not classified as orthognathous.
- **Homo habilis:** This species also has a more protruding jaw compared to Cro-Magnon man.

4. **Identify the Correct Answer:**
- Based on the analysis, **Cro-Magnon man** is the only option that exhibits an orthognathous face.

5. **Conclusion:**
- Therefore, the correct answer is **Cro-Magnon man**.

### Final Answer:
Orthognathous face occurs in **Cro-Magnon man**.