|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Perissodactyla - Equidae
It was synonymized subjectively with Calippus anatinus by Webb (1969); it was recombined as Pseudhipparion curtivallum by Forsten (1975), Webb and Hulbert (1986) and MacFadden (1998).
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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.
|J. H. Quinn 1955||maller than A. ansae; paralophid short and thick; flexids long and deep; metaconid and metastylid at- tenuated with metaconid longer than meta- stylid; entoconid elongate; parastylid present; median valley of molars short- ened; long narrow commissure between reentrants of flexids as on premolars; pro- toconid and hypoconid flattened on mo- lars; referred upper teeth straight crowned, slender; simple enamel pattern; small compressed fossettes; protocone without heel or groove.|