During the behavioural observation period in 1997, group R had a total of 126 core members i.e., 91 natal females and 35 natal males (not involving adult males which are non-natal), but the behavioural analyses wererestricted to interactions among adult females and their female descendants (N=91). The table contains the 3 matrilines (named D07, CS, 262) which are ranged depending upon their dominance rank. Note that family 897 ranked lowest from all families despite they belonged to the matriline CS. The table gives also name of the families (N=11) with their number of females (Nf) and males (Nm). The name given in the family column is considered as the family founder female. Note that not all family founder females from matriline 262 are direct descendants of the matrilineal founder female 262, i.e., only some of them are maternal half-sisters. Group subjects are sorted by birth cohort, adult females born in 1987 or before are summarised. Focal females (N=34, marked in bold) were born between 1988 and 1994. Identities of males are replaces by the small letter m. Infants born in 1997 did not yet have their official tattoo, therefore they had their mother’s tattoo in addition with the capital letter I. The last column contains the mother of all individuals in this row. † indicates individuals not alive during the behavioural study.