| 词条 | Cephalomyidae |
| 释义 |
| fossil_range = Late Oligocene-Early Miocene (Deseadan-Colhuehuapian) ~{{Fossil range|21.0|17.5}} | display_parents = 3 | taxon = Cephalomyidae | authority = Ameghino 1897 | subdivision_ranks = Genera | subdivision =
}}Cephalomyidae is an extinct family of caviomorph rodents from South America. The specific relationships of the family are uncertain, and affinities to both chinchilloid and cavioid rodents have been supported (McKenna and Bell, 1997; Vucetich et al., 1999; Kramarz, 2001, 2005). Most recently, Kramarz (2005) performed a phylogenetic analysis supporting a relationship to the Cavioidea, as represented by Eocardiidae. McKenna and Bell (1997) questioned the validity of the family, placing the cephalomyid genera then known in Dasyproctidae, but Kramarz (2001) subsequently reasserted the distinctiveness of cephalomyids. Fossils of the family have been found in Deseadan to Colhuehuapian Fray Bentos, Deseado, Cerro Bandera and Sarmiento Formations and the Colhué Huapí Member of Argentina and the Puca Group of Bolivia.[1] References{{portal|Prehistoric mammals|Prehistory of South America}}1. ^Cephalomyidae at Fossilworks.org Further reading
9 : Hystricognath rodents|Prehistoric rodent families|Oligocene rodents|Miocene rodents|Chattian first appearances|Miocene extinctions|Miocene mammals of South America|Oligocene mammals of South America|Taxa named by Florentino Ameghino |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。