|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Primates - Notharctidae
It was recombined as Hipposyus robustior by Leidy (1873); it was synonymized subjectively with Notharctus crassus by Granger and Gregory (1917).
|Year||Name and author|
|1872||Notharctus robustior Leidy|
|1872||Telmalestes crassus Marsh p. 206|
|1873||Hipposyus robustior Leidy|
|1873||Telmatolestes crassus Marsh p. 162|
|1917||Notharctus crassus Granger and Gregory|
|1934||Notharctus robustior Gazin|
|1957||Notharctus robustior Robinson|
|1979||Notharctus robustior Gingerich p. 158|
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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.