Table 2. Sample composition for hominoid upper and lower molars used in this study.

Taxon	Upper molars					Lower molars
	UM1	UM2	UM3	UM	Total	LM1	LM2	LM3	LM	Total
A. anamensis	2	3	—	—	5	3	4	—	—	7
A. afarensis	2	1	1	1	5	3	4	2	—	9
A. africanus	10	11	7	1	29	14	21	16	—	51
P. aethiopicus	—	—	—	—	—	—	2	—	—	2
P. boisei	1	1	1	—	3	—	4	1	1	6
P. robustus	16	12	8	—	36	20	14	13	—	47
Homo sp./habilis s.l.	4	2	—	—	6	5	3	1	—	9
H. erectus s.l.	2	3	—	—	5	1	2	1	—	4
Middle Pleistocene hominins	1	1	—	—	2	1	1	1	—	3
H. neanderthalensis	19	19	3	1	42	18	24	7	—	49
H. sapiens (Pleistocene)	4	5	1	2	12	3	10	9	3	25
H. sapiens (recent)	14	20	2	13	49	37	64	24	3	128
P. troglodytes	16	21	6	—	43	28	34	10	—	72
P. paniscus	5	1	—	—	6	10	11	—	—	21
Gorilla	1	7	8	—	16	1	10	11	—	22
Pongo	7	7	3	—	17	12	15	6	—	33