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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Maruchito
Taxonomy
Maruchito was named by Vucetich et al. (1993). Its type is Maruchito trilofodonte.
It was assigned to Echimyidae by Vucetich et al. (1993), McKenna and Bell (1997), Carvalho and Salles (2004), Verzi et al. (2014).
It was assigned to Echimyidae by Vucetich et al. (1993), McKenna and Bell (1997), Carvalho and Salles (2004), Verzi et al. (2014).
Species
M. trilofodonte (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Maruchito Vucetich et al. p. 370 |
| 1997 | Maruchito McKenna and Bell |
| 2004 | Maruchito Carvalho and Salles |
| 2014 | Maruchito Verzi 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. G. Vucetich et al. 1993 | Echimyidae de tamaño mediano, con molariformes de corona alta, sin cemento, con crestas alargadas, transversales en los molares superiores y angulosos en los inferiores, con el ápice del ángulo hacia adelante. Hipofléxido dirigido hacia adelante como en Abrocoma, Massoiamys y Nelomy. Incisivo inferior corto, con el fondo del alvéolo ubicado debajo del M2 |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| P4 height | 1 | 2.20 | - | - | - | - | |
| p4 height | 2 | 2.55 | 2.50 | 2.60 | 2.55 | 0.071 | |
| m1 height | 3 | 2.49 | 2.20 | 2.80 | 2.50 | 0.300 | |
| m2 height | 2 | 2.72 | 2.65 | 2.80 | 2.72 | 0.106 | |
| m3 height | 2 | 3.52 | 3.45 | 3.60 | 3.53 | 0.106 |
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Nowak 1991, Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009 | |||||
Age range: base of the Santacrucian to the top of the Colloncuran or 17.50000 to 13.80000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Santacrucian - Friasian | Chile (Bío Bío) | M. sp. (140107) | |
| Santacrucian - Laventan | Chile (Bío Bío) | M. nov. sp.? (140105) | |
| Colloncuran | Argentina (Neuquén) | M. trilofodonte (141175) |