Radinsky L
Science. 1967 Feb 17;155(3764):836-8. doi: 10.1126/science.155.3764.836.
The relation of the volume of the endocranial cavity to the area of the foramen magnum is a measure of relative brain size in mammals. The outstanding advantage of this method is that only a skull is required for a set of measurements.
颅腔容积与枕骨大孔面积的关系是衡量哺乳动物相对脑大小的一个指标。这种方法的显著优点是进行一系列测量仅需一个头骨。