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Protohippus gidleyi
Discussion
type locality is 18554
Taxonomy
Protohippus gidleyi was named by Hulbert (1988). Its type specimen is UF 62473, a set of teeth (assoc. R P2-M3 and L P2-Ml.), and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Protohippus gidleyi Hulbert, Jr. p. 294 figs. 22C-22F, 24-25 |
| 1998 | Protohippus gidleyi MacFadden p. 550 |
| 1998 | Protohippus gidleyi MacFadden and Dobie p. 149 fig. 1 |
| 2006 | Protohippus gidleyi Hulbert and Whitmore p. 17 |
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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.
†Protohippus gidleyi Hulbert, Jr. 1988
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. C. Hulbert 1988 | Protohippus intermediate in size between P.perditus and P. supremus, with toothrow lengths of 125 to 135 mm. Unworn molar crown height about 58 mm. Protocones of P3 and P4 generally isolated for uppermost 20% of crown, then connected to protoselene at MSCHs of 30 to 40 mm. M3 protocone also often isolated until moderate wear-stages, but may connect earlier. P2, M1, and M2 protocones generally isolated only in very early wear-stages. Protocone of P3-M2 large, elongate; on M12 connected to hypocone in latest wear-stages. Anterostyle of P2 reduced. Lower cheekteeth similar to those of P. supremus but with more expanded metaconid-metastylid complex, more persistent lingual flexids, and less prominent protostylids. Paraconid of p2 and dp2 less flattened than in P. supremus. Ectostylid of dp2-dp4 rudimentary. |