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Octomys rosiae
Taxonomy
Octomys rosiae was named by Verzi et al. (2024). Its type specimen is VQ-G1 1800, a mandible (right mandible lacking angular apophysis and tip of coronoid process, with incisor and m1–2), and it is a 3D body fossil. Its type locality is Vaquería Gruta 1, which is in a Holocene terrestrial horizon in Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2024 | Octomys rosiae Verzi et al. p. 62 figs. Figs. 4-6 |
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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.
†Octomys rosiae Verzi et al. 2024
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. H. Verzi et al. 2024 | A species of the genus Octomys with mandibular corpus longer and shallower than that of O. mimax, and diastema more horizontal than in the latter species; in accordance with these traits, the lower incisor is less curved. Tip of the chin process located at level of the posterior part of the diastema. Notch for the tendon of the m. zygomatico-mandibularis more ventral than the diastema. Anterior margin of the coronoid process ascending behind the m2, not overlapping the latter in lateral view. Postcondyloid process with a ventrolateral apophysis, which is weak or absent in O. mimax. Masseteric crest slightly more posteriorly oriented at
its origin than that of O. mimax. |
Measurements
No measurements are available
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| Source: g = genus, f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Fernández et al. 2000, Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009, Nowak 1991, Carroll 1988 | |||||