Table 1.
Proboscidean synapomorphies of Eritherium azzouzorum n. g., n.sp.
| K | RI | State | Homoplasy | Description |
|---|---|---|---|---|
| 3 | 100 | 0→1* | I1 enlarged and probably high crowned | |
| 5 | 83 | 0→1 | c: Ocepeia | I3 strongly reduced |
| 6 | 77 | 01→2* | C1 very small | |
| 9 | 69 | 01→2 | c: ? | (d)P1 small and simple |
| 14, | 42, | 1→0 | r: Paenungulata/Tethytheria, Daouitherium, | Simplified premolars: P3–4: paraconid and |
| 15, | 42, | 0→1 | Moeritherium, and advanced proboscideans | ectocingulid reduced; P3: metaconid reduced |
| 18, | 25, | 0→1 | ||
| 21 | 50 | 1→0 | ||
| 34 | 20 | 0→1 | r: Numidotherium; c: Hyracoidea | M1–3: Mesoconid |
| 35 | 28 | 01→2 | r: Numidotherium, Daouitherium, Barytherium | M1–3: Cristid obliqua labial |
| 37 | 44 | 0→2* | M1–3: hypoconulid labial | |
| 39 | 33 | 0→1 | r: Numidotherium, Daouitherium, Barytherium | M1–2: Postentoconulid |
| 55 | 62 | 1→2* | Coronoid retromolar fossa enlarged | |
| 86 | 50 | 1→0 | r: Moeritherium | M1–3: No postcingulum |
| 87 | 63 | 3→2 | r: Moeritherium | M1–3: No lingual cingulum |
| 118 | 83 | 0→1 | c: Embrithopoda | Skull: Orbit mesially bordered by maxillary |
| 125 | 75 | 0→1 | c: Sirenia | Skull: Jugal high, with ventral process |
| 11–12 | 33, | 1→2 | 11(1)–12(1): also Desmostylia and Sirenia; r?: | P2 small, simplified and uniradicular |
| 33 | 0→1 | Numidotherium, Daouitherium, Barytherium, Moeritherium |
Proboscidean synapomorphies of Eritherium azzouzorum n.g., n. sp. K, character number (see description in SI Appendix). It should be noted that all characters listed are preserved and observed in available material of Eritherium. r and c, reversion and convergence known in taxa compared; RI: Retention Index.
*Nonhomoplastic state.