Table 12. Cladistic interpretation of shared characters of Ocepeia with ungulates and paenungulates (ordered analysis, Fig. 21).
| Characters | Description | Convergence with | Remarks |
| 28–1 (RI = 88) | Lower molars with lingual cusps larger than labial cusps | Protungulatum, Paenungulata | |
| 34–1 (RI = 88) | Hypolophid present | (Perissodactyla, Teilhardimys, Paenungulata) | |
| 63–1 (RI = 50) | Anterior coronoid (retromolar) fossa present | Some Paenungulata: Hyracoidea, Proboscidea, Embrithopoda | Not Sirenia, Desmostylia, Minchenella, Phenacolophus, Anthracobunia |
| 98–1 (RI = 16) | Mesostyle present | Phenacodonta, some Paenungulata: Hyracoidea, Proboscidea, Desmostylia, Embrithopoda | Not Sirenia and advanced Proboscidea (reversals) |
| 101–1 and 101–2 (RI = 33) | Centrocrista dilambdodont and linked to the mesostyle | Phenacodonta, Paenungulata | Not Minchenella; centrocrista secondarily lost in Sirenia, Desmostylia; convergence with Hyracoidea and Embrithopoda at state 2; convergence with Phenacodonta and Paenungulata at state 1 |
| 161–1 (RI = 83) | Periotic amastoidy | Paenungulata | |
| 126–1 (RI = 71) | Nasal cavity wide and high | Orycteropus, Tethytheria | Not Hyracoidea (primitive state?) |
| 145–1 (RI = 60) | Zygomatic arch high dorso-ventrally with ventral process at maxillary suture | Tethytheria | Not Hyracoidea and Desmostylia (primitive state?) |
| 136–1(RI = 50) | Orbit bordered ventrally partly by a short process of the maxillary which extends between the lacrimal and jugal | Some Paenungulata: Hyracoidea, Proboscidea, Embrithopoda | Not Sirenia, Desmostylia, Anthracobunia |
| 7–1 (RI = 50) | I3 vestigial | Proboscidea (Eritherium) | I3 becoming lost in proboscideans |
| 67–1 (RI = 0) | I2 enlarged | Proboscidea | |
| 162–1 (RI = 50) | Pars mastoidea larger than pars cochlearis | Proboscidea | |
| 25–1 (RI = 92), 88–1 (RI = 50) | M1–3 bunodont with low trigonid | “Ungulate” plesiomorphy? | |
| 62–1 (RI = 40) | Angular process broad and rounded posteriorly projecting | “Ungulate” plesiomorphy? | |
| 111–1 (RI = 33) | M1<M2 | “Ungulate” plesiomorphy? |
RI: Retention Index.