Table 2.
Characters used in phylogenetic analysis
| Character no. | Character | Description |
|---|---|---|
| 1 | Canine alveolus | (0) Large; (1) small; (2) smallest |
| 2 | P1 | (0) Present; (1) reduced; (2) absent |
| 3 | P3 shape | (0) Straight; (1) slightly procumbent; (2) procumbent |
| 4 | Length of P3–4 compared with M1–2 | (0) P3–4 not compressed; (1) P3–4 anteroposteriorly compressed |
| 5 | P3 paraconid | (0) Distinct cusp; (1) crestiform to absent |
| 6 | Protoconid on P3 to M1 | (0) High; (1) low |
| 7 | P4 shape | (0) Very narrow; (1) narrow; (2) wide; (3) very wide |
| 8 | P4 paraconid | (0) Well developed and distinct; (1) small; (2) very small to absent |
| 9 | P4 metaconid | (0) Low; (1) intermediate; (2) high |
| 10 | Postprotoconid crest on P4 and M1 | (0) Absent; (1) present |
| 11 | Anterior portion of the oblique crest on P4 | (0) Reaching the base of the trigonid wall; (1) running part way up the trigonid wall; (2) rising on the trigonid wall, higher than the top of the metaconid |
| 12 | Anterior portion of oblique crest on M1 | (0) Reaching the base of the trigonid wall; (1) running part way up the trigonid wall; (2) reaching the top of the metaconid |
| 13 | Labial cingulids on lower molars | (0) Weak or absent; (1) moderate; (2) strong |
| 14 | Hypoconulids on M1 and M2 | (0) Well defined; (1) weak |
| 15 | M2 shape | (0) Narrow; (1) somewhat square; (2) clearly square; (3) square and inflated |
| 16 | M2 entoconid | (0) Low; (1) high |
| 17 | Hypoconulid lobe on M3 | (0) Narrow; (1) intermediate; (2) wide |
Outgroup taxon was Donrussellia provincialis. All characters were ordered.