|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Hyaenodonta - Hyaenodontidae
It was recombined as Stypolophus multicuspis by Cope (1877); it was recombined as Sinopa multicuspis by Scott (1892), Matthew (1899), Matthew (1901), Matthew (1909) and Matthew and Granger (1915); it was synonymized subjectively with Prototomus secundarius by Gingerich and Deutsch (1989) and Gunnell (1998).
|Year||Name and author|
|1875||Prototomus multicuspis Cope p. 10|
|1877||Stypolophus multicuspis Cope|
|1892||Sinopa multicuspis Scott p. 310|
|1899||Sinopa multicuspis Matthew|
|1901||Sinopa multicuspis Matthew|
|1909||Sinopa multicuspis Matthew|
|1915||Sinopa multicuspis Matthew and Granger|
|1965||Prototomus multicuspis Van Valen|
|1971||Prototomus multicuspis Guthrie|
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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.