|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Artiodactyla - Merycoidodontidae
It was synonymized subjectively with Promerycochoerus montanus by Thorpe (1937); it was synonymized subjectively with Merycochoerus superbus by Lander (1998) and Tabrum and Nichols (2001); it was recombined as Megoreodon grandis by Schultz and Falkenbach (1940), Schultz and Falkenbach (1954) and Stevens and Stevens (2007).
|Year||Name and author|
|1907||Promerycochoerus grandis Douglass p. 104 figs. Pl. 27|
|1907||Promerycochoerus hollandi Douglass p. 106|
|1934||Promerycochoerus loomisi Schlaikjer|
|1940||Megoreodon grandis Schultz and Falkenbach|
|1954||Megoreodon grandis Schultz and Falkenbach p. 168|
|1968||Megoreodon hollandi Skinner et al.|
|1970||Megoreodon hollandi Macdonald|
|2007||Megoreodon grandis Stevens and Stevens p. 160|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|C. B. Schultz and C. H. Falkenbach 1954||SKULL: Large and massive (larger than examples of M. fricki, tendency to be smaller than those of M. grandis loomisi); infraorbital foramen above posterior portion of P4.
MANDIBLE:Smaller than in average examples of M. grandis loomisi.
DENTITION:Series similar to those of examples of M. grandis loomisi.
LIMBS: Approximately equal to those of other forms of genus.