Table 3. Dental character distribution in the Homo groups and status of H. floresiensis.

			EP				MP	LP		Status a
	Character	Refer to	H. hab.	H. erg.	Dmanisi	eJHe	E-Asia	H. sap.	H. flo.	H. flo.
#1	C1 distal shoulder low (vs. high)	1 in Table 2, Fig 7A	yes	−	−	yes	yes	no	yes	EP-MP
#2	P3 & P4 transverse crest often present	2 & 3 in Table 2	yes	yes?	?	yes	no?	no	yes	EP
#3	P3 buccal groove(s) always present	4 in Table 2	yes	no	no	no	no	no	no	post-Hh
#4	P4 crown buccal ≤ lingual	6 in Table 2	yes	?	yes	yes	no	no	yes	EP
#5	P3 crown long MD & asymmetric	PCs1 & 2 in Fig 4A	yes	yes	−	yes	−	no	yes	EP
#6	P3 lingual cusp located mesially (vs. distally on occasion)	7 in Table 2	yes	no	no	yes	no	no	no	post-Hh
#7	P3 mesiolingual crown normal (vs. beveled and wrinkled)	9 in Table 2	yes	yes	yes	yes	yes	yes	no	unique
#8	P3 buccal basal enamel swelling	14 in Table 2	yes	no	yes	yes	yes	no	yes	EP-MP
#9	P3 root often bifurcated (vs. Tomes' form or single)	15 in Table 2	yes	yes	yes?	yes	no	no	yes	EP
#10	P4 crown oblique (vs. MD symmetric)	PC2 in Fig 4C	yes	yes	−	yes	−	variable	yes	EP range
#11	P4 crown triangular (vs. more circular)	PC3 in Fig 4D	yes	variable	−	no	−	variable	no	post-Hh
#12	P4 transverse crest absent (vs. present)	11 in Table 2	yes	no	no	no	no	often yes	no	post-Hh
#13	M1 crown long & parallelogram (vs. short & rectangle)	PCs1 & 2 in Fig 5A	yes	yes	−	no	−	variable	no+	unique
#14	M1 crown distobuccal corner projected (vs. abbreviated)	PC3 in Fig 5B	yes	yes	−	yes	−	variable	yes	EP range
#15	M2 crown long MD and distally tapering	PCs1 & 4 in Fig 5C and 5D	yes	yes	−	yes	−	variable	yes	EP range
#16	M2 crown parallelogram (vs. inverted trapezoid)	PC2 in Fig 5C	yes	yes	−	no	−	variable	no	post-Hh
#17	M1 crown long MD (vs. short)	PC1 in Figs 6A and 7C	yes	yes	−	no	−	no	no+	unique
#18	M1 crown squarish (vs. pentagonal)	PC3 in Fig 6B	yes	variable	−	yes	−	variable	yes	EP range
#19	M1 five-cusped (vs. four-cusped)	17 in Table 2	yes	yes	yes	yes	yes	not always	no	Hs
#20	M2 crown long MD (vs. short)	PC1 in Fig 6C	yes	variable	−	no	−	variable	no	post-Hh
#21	M2 crown rounded (vs. square)	PC3 in Fig 6D	yes	yes	−	yes	−	variable	yes	EP range
#22	M2 five-cusped (vs. four-cusped or less)	18 in Table 2	yes	yes	yes	no?	yes	no	no	Hs?
#23	M1 mid-trigonid crest absent or rare	19 in Table 2	yes	?	no	no	?	yes	no	post-Hh
#24	Relative P3 size	21 in Table 2	moderate	moderate	moderate	moderate	moderate	small	large	unique
#25	M1/M2 size proportion	22 in Table 2, Fig 7D	M1 < M2	M1 ≤ M2	M1 ≤ M2	M1 < M2	M1 = M2	M1 ≥ M2	M1 = M2	post-Hh
#26	Alveolar arcade index (length-breadth index [%])	23 in Table 2	narrow	wide?	narrow	moderate	wide	−	moderate	eJHe

EP = Early Pleistocene; MP = Middle Pleistocene; LP = Late Pleistocene; H. hab. = H. habilis; H. erg. = H. ergaster; eJHe = early Javanese H. erectus; MP E-Asia = East Asian Middle Pleistocene archaic Homo; H. sap., Hs = H. sapiens; H. flo. = H. floresiensis.

^aStatus of H. floresiensis is categorized as follows: EP = a primitive condition shared with the Early Pleistocene Homo; EP-MP = a primitive condition shared with the Early-Middle Pleistocene Homo; EP range = within the range of the Early Pleistocene Homo, which is mostly encompassed by the large variation of H. sapiens; post-Hh = derived from the H. habilis condition; Hs = derived like H. sapiens; unique = unique among all the samples compared; eJHe = similar to the condition of early Javanese H. erectus.