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Merychippus eoplacidus
Taxonomy
Merychippus eoplacidus was named by Osborn (1918). Its type specimen is AMNH 9347, a partial skeleton (lower jaw, cervicals, fore and hind feet, humerus, ulno-radius, parts of femur and tibia, all of one individual), and it is a 3D body fossil.
It was considered a nomen dubium by Macdonald (1992).
It was considered a nomen dubium by Macdonald (1992).
Synonymy list
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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.
†Merychippus eoplacidus Osborn 1918
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. F. Osborn 1918 | (Matthew, 1913) (1) Metastylid not separate on p2 ; (2) metaconid-metastylid pillar forming a narrow column, prominent but imperfectly divided; (3) heel of m3 small, simple, somewhat broader below; (4) antorbital region rather long, diastema one-third of the length of the grinding tooth row, symphysis mandibuli narrow, rather shallow but incisive row rounded; (5) shaft of ulna very slender, reduced almost to a thread but imperfectly united proximally and separate in distal half; (6) metapodials long and slender, lateral digits much reduced. |
Measurements
No measurements are available
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| Source: subf = subfamily, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Nowak 1991, Carroll 1988, Hendy et al. 2009, MacFadden 1998, Ji et al. 2002 | |||||
Collections
No collection or age range data are available