PaleoDB taxon number: 390045
Alternative combinations: Eporeodon major, Eucrotaphus (Oreodon) major, Eucrotaphus major, Merycoidodon major, Mesoreodon major, Oreodon major, Paramerycoidodon (Barbourochoerus) major, Paramerycoidodon major
Synonyms: Eporeodon hybridus Leidy 1869 (no. 46233), Eporeodon major hybridus Leidy 1869 (no. 389002), Genetochoerus (Osbornohyus) chamberlaini Schultz and Falkenbach 1968 (no. 46590), Merycoidodon hybridus Leidy 1869 (no. 394493), Merycoidodon lambi Schultz and Falkenbach 1968 (no. 48309), Merycoidodon lynchi Schultz and Falkenbach 1968 (no. 48311), Oreodon hybridus Leidy 1869 (no. 49390), Otionohyus (Otarohyus) alexi Schultz and Falkenbach 1968 (no. 49487), Otionohyus (Otarohyus) hybridus Leidy 1869 (no. 389030), Otionohyus hybridus Leidy 1869 (no. 49490), Paramerycoidodon (Gregoryochoerus) wanlessi Schultz and Falkenbach 1968 (no. 49872), Promesoreodon scanloni Schultz and Falkenbach 1949 (no. 50837), Pseudodesmatochoerus milleri Schultz and Falkenbach 1954 (no. 51191), Subdesmatochoerus shannonensis Schultz and Falkenbach 1954 (no. 51864)
Belongs to Merycoidodon (Otarohyus) according to M. S. Stevens and J. B. Stevens 1996
Sister taxon: Merycoidodon (Otarohyus) bullatus
Subtaxa: Eporeodon major cedrensis
Type specimens:
- Merycoidodon (Otarohyus) major: USNM 19099, a maxilla
- Genetochoerus (Osbornohyus) chamberlaini: UNSM 28340, a partial skull. Its type locality is UNSM Mo-111 (Upper Whitney), which is in a Whitneyan terrestrial horizon in the Brule Formation of Nebraska.
- Merycoidodon lambi: F:AM 72139, a partial skeleton.
- Merycoidodon lynchi: F:AM 45297, a skull.
- Oreodon hybridus: ANSP 10860, a partial skull.
- Otionohyus (Otarohyus) alexi: F:AM 72060, a skull.
- Paramerycoidodon (Gregoryochoerus) wanlessi: F:AM 72014, a skull.
- Promesoreodon scanloni: F:AM 45329, a partial skull (Partial skull with C/-P1 rt. and P2(br.) - M3 and partial mandible with i1-p2 rt. and PrMa,).
- Pseudodesmatochoerus milleri: F:AM 33304, a skull (Skull with I1-M3 and mandible with i1-m3).
- Subdesmatochoerus shannonensis: AMNH 1310, a partial skull (partial skull with I1-M3 (I3 rt., dP4 present on right side, P4 erupt. on left side)).