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Miohippus grandis
Taxonomy
Mesohippus grandis was named by Clark and Beerbower (1967). Its type locality is Peanut Peak, which is in a Chadronian terrestrial horizon in the Chadron Formation of South Dakota.
It was synonymized subjectively with Miohippus assiniboiensis by Prothero and Shubin (1989); it was recombined as Miohippus grandis by Storer and Bryant (1993).
It was synonymized subjectively with Miohippus assiniboiensis by Prothero and Shubin (1989); it was recombined as Miohippus grandis by Storer and Bryant (1993).
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Mesohippus grandis Clark and Beerbower |
| 1993 | Miohippus grandis Storer and Bryant p. 663 fig. 3.3 |
| 1998 | Mesohippus grandis MacFadden p. 543 |
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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.
†Miohippus grandis Clark and Beerbower 1967
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. E. Storer and H. N. Bryant 1993 | "1-3 length = 38-42 mm. Skull longer than Miohippus obliquidens, but shorter than Miohippus intermedius. Hypostyles all class 3. Crochets frequently present." |