|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Merychippus isonesus quintus
Mammalia - Perissodactyla - Equidae
It was recombined as Stylonus quintus by Kelly and Lander (1988); it was recombined as Merychippus quintus by Dorr and Wheeler (1964) and Kelly (1995).
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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.
|H. F. Osborn 1918||(Matthew, 1913, Osborn, 1918) (1) The type a larger animal than any of the preceding premutations, approaching M. sever8U8 in the plications of tne enamel; (2) crochet bifid, i. e. with a large spur projecting into the pre- fossette and a large inferior pli caballin fold; (3) protocone separate from protoconule in little worn molars, uniting with protoconule in molars one-fourth worn; (4) protocone elongate anteroposteriorly in pLm3; (5) metaloph sending a single fold into prefossette, and from one to two folds into postfossette; (6) shafts of limbs robust; (7) metapodials robust; (8) shafts of lateral digits and lateral phalanges much heavier than in M. isone8WJ secundus and M. isonesus tertius.|