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Pascualihippus boliviensis
Taxonomy
Pascualihippus boliviensis was named by Shockey (1997). Its type specimen is MNHN-Bol-V-00342, a partial skull (Anterior part of skull preserving the snout and upper dentition, lacking the left M3 and the posterior part of the right M3), and it is a 3D body fossil. Its type locality is Salla, which is in a Deseadan terrestrial horizon in the Salla Formation of Bolivia. It is the type species of Pascualihippus.
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Pascualihippus boliviensis Shockey p. 586 figs. 1, 2a |
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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.
†Pascualihippus boliviensis Shockey 1997
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. J. Shockey 1997 | Premaxillary dental arcade linear, formed with only I1 AND I2 until advanced wear. Second incisor lateral to and conspicuously broader than I1. I3 posterior to I2 and much reduced, as are canines. Narrowing of snout occurring posterior to I3 with width decreasing to narrowest point at level of P1. Palate broadening posterior to P1. M1 having well-formed anterolingual cingulum not seen in other Deseadan notohippids. Anterior nasals not simply rounded, but having projecting lateral margins. Premaxillary dental arcade linear and transverse, not semicircular. Distinct from Eomorphippus obscurus by leading edge formed with only first two incisors, whereas all three incisors form leading edge of E. obscurus. Differs from toxodontids by medial origination, and lack of bifurcation of anterior arm of lingual infolding in upper molars. Size similar, but differs from Rhynchippus equinus by transverse muzzle, greater reduction of I3 and C, I2 broader than I1, and retention of anteriolingual cingulum of M1. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, MacFadden et al. 1996, Ji et al. 2002, Lillegraven 1979, Carroll 1988 | |||||