Table 3.

Character matrix used for phylogenetic analysis

Genus and species	Position on matrix
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
Donrussellia provincialis	0	0	0	0	0	0	0	0	1	0	2	2	1	0	1	0	1
Teilhardina asiatica	0	0	0	0	1	0	0	1	0	0	0	0	0	0	0	0	0
Teilhardina belgica	0	1	1	0	1	1	1	1	0	0	1	1	0	0	1	0	1
Teilhardina brandti	?	?	?	?	1	1	1	1	0	0	1	1	0/1/2	0	2	0	1
Teilhardina americana	1	1/2	2	0	1	1	2	1	1	0	2	1	2	1	2	1	2
Steinius vespertinus	0	1	1	0	1	1	2	2	1	1	2	1	2	1	2	1	2
Teilhardina crassidens	1	2	2	1	1	1	3	1	2	1	-	2	2	1	3	1	2
Tetonius mckennai	2	2	2	1	?	1	3	1	1	0	2	1	2	1	2	1	2

Changes in omomyid species, together with increasing I₁ size, were probably related to increasing gum-feeding and frugivory (28). P₁ for T. americana (character 2) is either reduced (most specimens) or absent (at least one) (19). Low entoconid on M₂ (character 16) can be objectively assessed by measuring the angle made by the entocristid and post-entocristid (part of postcristid), i.e., the crests running anteriorly and posterolabially from the entoconid: When viewed from above or obliquely from the labial side, this angle is always obtuse in T. belgica and T. brandti (resulting in a low entoconid) and acute in T. americana and T. crassidens (high entoconid). Labial cingulids (character 13) are variable in T. brandti.