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Dudumus
Taxonomy
Dudumus was named by Arnal et al. (2014). Its type is Dudumus ruigomezi.
It was assigned to Octodontoidea by Arnal et al. (2014), Arnal and Vucetich (2015).
It was assigned to Octodontoidea by Arnal et al. (2014), Arnal and Vucetich (2015).
Species
D. berggreni, D. ruigomezi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Dudumus Arnal et al. |
| 2015 | Dudumus 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.
G. †Dudumus Arnal et al. 2014
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†Dudumus berggreni McGrath et al. 2023
†Dudumus ruigomezi Arnal et al. 2014
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Arnal et al. 2014 | Small octodontoid rodent nearly 15% larger than Caviocricetus lucasi and 35% smaller than Prospaniomys priscus. DP4/dp4 retained through life. Lower and upper molariforms low crowned, terraced, and with well-differentiated cusps, as in C. lu- casi. The dp4 with metalophulid I separated from the metaconid in juvenile specimens and a spur projecting posterolingually from the posterior wall of metalophulid I, between the protoconid and anteroconid; lower molars with large lingual cusps and metalo- phulid II longer in m2 than in m1and m3, as in P. priscus. Dental morphology of upper cheek teeth similar to C. lucasi, with an- teroposterior diameter longer than transverse one; paracone con- spicuously higher than the rest of the tooth; mesolophule present, longer and higher than in C. lucasi. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Hendy et al. 2009, Nowak 1999, Carroll 1988, Ji et al. 2002 | |||||
Age range: base of the Burdigalian to the top of the Santacrucian or 20.45000 to 16.30000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Colhuehuapian | Argentina (Chubut) | D. ruigomezi (27311 145897) | |
| Burdigalian | Chile (Aisén) | D. berggreni (71843) | |
| Santacrucian | Argentina (Santa Cruz) | D. sp. nov.? (210638) |