Help Tom McCune determine the sex of the skeleton by labeling the specific parts of the pelvic girdle and circling their characteristics on the chart below; then answer the question that follows and provide your reasoning.
Sex Characteristics of the Pelvis |
||
|---|---|---|
| Feature | Male | Female |
| A. obturator foramen shape | large, ovoid | triangular |
| B. acetabulum size | large | small |
| C.subpubic angle | V-shaped | U-shaped |
| D.sciatic notch shape | narrow, deep | wide |
| E. ilium shape | high, vertical | wide |
| F. pelvic inlet shape | heart-shaped | circular |
| G. sacrum shape | long, narrow | short, wide |
What is the sex of the unknown pelvic bone?
Record observations that support this determination: