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Quebradahondomys
Taxonomy
Quebradahondomys was named by Croft et al. (2011). Its type is Quebradahondomys potosiensis.
It was assigned to Echimyidae by Croft et al. (2011).
It was assigned to Echimyidae by Croft et al. (2011).
Species
Q. potosiensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Quebradahondomys Croft et al. |
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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.
G. †Quebradahondomys Croft et al. 2011
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†Quebradahondomys potosiensis Croft et al. 2011
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. A. Croft et al. 2011 | Quebradahondomys differs from Spaniomys Ameghino, 1877, in having trilophodont molars (tetralophodont in Spaniomys). It differs from Maruchito Vucetich et al., 1993, in its straighter, less undulating lophids, shallower and medially-directed hypoflexids, and narrower buccal lophids. Quebradahondomys differs from Stichomys Ameghino, 1887, Prostichomys Kramarz, 2001, Xylechimys Patterson and Pascual, 1968, and Deseadomys Wood and Patterson, 1959, in its lack of an anterofossettid and its more transverse lophids. It further differs from Stichomys in having a hypoflexid that is less penetrating and proportionally wider lingually, and in m3 being the largest tooth in the molar series (it is the smallest in Stichomys). Quebradahondomys resembles Adelphomys Ameghino, 1887, in having the hypoflexid and metaflexid separated only by a very narrow isthmus, but in Quebradahondomys the hypoflexid is shallower, the lophids are more transverse, and the posterolophid is anteroposteriorly thicker. Quebradahondomys lacks the confluence of the hypoflexid and mesoflexid present in Paradelphomys Patterson and Pascual, 1968. The molars of Ricardomys Walton, 1990, are smaller, proportionately narrower, and have less penetrating hypoflexids than Quebradahondomys. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1991, Hendy et al. 2009, Ji et al. 2002, Lillegraven 1979, Carroll 1988 | |||||