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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Discussion
The specific epithet refers to old or ancient in the language Quechua.
Taxonomy
Palaeocavia mawka was named by Madozzo-Jaén and Pérez (2017). Its type specimen is MCH-P 164, a mandible (left mandibular fragment with p4–m3), and it is a 3D body fossil. Its type locality is Hualfin Valley (Villavil and Puerta de Corral Quemado), which is in a Huayquerian terrestrial sandstone in the Chiquimil Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Palaeocavia mawka Madozzo-Jaén and Pérez p. 380 |
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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.
†Palaeocavia mawka Madozzo-Jaén and Pérez 2017
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. C. Madozzo-Jaén and M. E. Pérez 2017 | Caviinae diagnosed by following unique combination of characters: the small size species and lacks the anterior–posterior projection of first lobule of p4 and the position oblique to the same on axis of the mandible. The shape of anterior lobe of molariforms is lanceolate (leaf-shaped) and the posterior lobe is heart-shaped. The lingual edge of hypoflexid is forming a bezel contour. Differs of P. chapalmalensis and P. impar for absent of the mylohyoid shelf; wide and shallow depth and the lacks of cement of primary flexid (hpi) in molariforms. In comparison with P. avita shared the shallow depth of primary flexid in molariforms, but differs from this in that anterior lobe in the new species seems slightly larger than P. avita. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Lillegraven 1979, Ji et al. 2002, Nowak 1991, Hendy et al. 2009 | |||||
Age range: Huayquerian or 8.00000 to 5.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Huayquerian | Argentina (Catamarca) | Palaeocavia mawka (type locality: 204536) |