|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Artiodactyla - Merycoidodontidae
both specimens, therefore, are listed below as part of the holotype
It was recombined as Pronomotherium altiramus by Douglass (1907), Matthew (1909), Thorpe (1924), Thorpe (1925) and Thorpe (1937); it was recombined as Pronomotherium altiramum by Douglass (1907); it was recombined as Brachycrus altiramus by Schultz and Falkenbach (1940); it was synonymized subjectively with Brachycrus laticeps by Kelly and Lander (1988), Lander (1998) and Tabrum and Nichols (2001).
|Year||Name and author|
|1901||Merycochoerus altiramus Douglass p. 73 fig. 1|
|1907||Pronomotherium altiramum Douglass|
|1907||Pronomotherium altiramus Douglass p. 97|
|1909||Pronomotherium altiramus Matthew|
|1924||Pronomotherium altiramus Thorpe|
|1925||Pronomotherium altiramus Thorpe|
|1937||Pronomotherium altiramus Thorpe|
|1940||Brachycrus altiramus Schultz and Falkenbach p. 228|
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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.