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Taxonomy
Changquin was named by Vucetich et al. (2014). Its type is Changquin woodi.
It was assigned to Acaremyidae by Vucetich et al. (2014); and to Octodontoidea by Arnal and Vucetich (2015).
It was assigned to Acaremyidae by Vucetich et al. (2014); and to Octodontoidea by Arnal and Vucetich (2015).
Species
C. woodi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Changquin Vucetich et al. |
| 2015 | Changquin Arnal and Vucetich |
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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. 2014 | Octodontoid diagnosed by the following unique combination of characters (autapomorphies marked with an as- terisk): medium-sized octodontoid similar in size to Sciamys principalis Ameghino, 1887, and Galileomys antelucanus Vucetich and Kramarz, 2003; lower cheek teeth protohypsodont (Mones, 1982) and tetralophodont; dp4 with well-developed hypolophid and long posterolophid, both reaching the lingual face of the tooth; m1–2 with cusps completely merged into lophids; metalo- phulid II long and united to the metalophulid I at the lingual bor- der of m1 and m2 closing the anterofossettid even without wear; metalophulid I with a shallow groove at its midpoint in unworn teeth; and lophids close to each other delimiting narrow fosset- tids/flexids, but posterolophid not completely fused lingually to the hypolophid in juveniles. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1999, Hendy et al. 2009, Ji et al. 2002, Lillegraven 1979, Carroll 1988 | |||||