|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Artiodactyla - Camelidae
It was recombined as Protolabis angustidens by Matthew (1901), Cope and Matthew (1915), Galbreath (1953) and Lewis (1968); it was recombined as Alticamelus angustidens by McGrew (1938); it was synonymized subjectively with Protolabis heterodontus by Webb (1969) and Frick and Taylor (1971).
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