| In addition, he said, some children, especially in patrilinear societies, are not cared for by their mothers even though the mother may be alive and well. |
| It is necessarily younger than the age of either the matrilinear or the patrilinear MRCA, both of which have an estimated age of between roughly 100,000 and 200,000 years ago. |
| Families in Benin are generally patrilinear. |
| Although we do not know much about the general population, we know that the rulers had a patrilinear system of inheritance. |
