|
|
|
|
|
| D'Elía,Guillermo; Pardiñas,Ulyses F. J; Teta,Pablo; Patton,James L. |
| A new tribe of sigmodontine rodents is formally defined and diagnosed. The tribe contains the extant genera Abrothrix (including Chroeomys), Chelemys, Geoxus, Pearsonomys, and Notiomys, a group of taxa distributed in the central and southern Andes and lowlands both east and west of the cordillera. The new tribe presents a unique combination of characters including nasals and premaxilla usually projected anterior to the incisors, moderately trumpeted; zygomatic plate with upper free border reduced or obsolete; and third upper molar reduced and sub-cylindrical in out-line with an internal ring-like enamel fossette. Molecular phylogenetic analyses indicate that Abrothrix is sister to a clade containing the remaining genera of the new tribe. |
| Tipo: Journal article |
Palavras-chave: Abrothrix; Chelemys; Chroeomys; Geoxus; Pearsonomys; Notiomys; South America; Classification. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382007000200007 |
| |
|
| |
|
|
|
