| 词条 | Dinomyidae |
| 释义 |
| fossil_range = {{Fossil range|Early Miocene|Recent}} | image = Josephoartigasia_BW.jpg | image_caption = Josephoartigasia | taxon = Dinomyidae | authority = Peters, 1873 | subdivision_ranks = Genera | subdivision = See text }} The Dinomyidae are a family of South American hystricognath rodents: the dinomyids were once a very speciose group, but now contains only a single living species, the pacarana. Several of the extinct dinomyids were among the largest rodents known to date; these included the bison-sized Josephoartigasia monesi[1] and the smaller Josephoartigasia magna.[2] The dinomyids are thought to have occupied ecological niches associated with large grazing mammals due to their ability to compete with the native ungulates of South America. These large forms disappeared after the formation of a connection to North America. The modern pacarana is only modest in size, considerably smaller than the capybara. The Neoepiblemidae, an entirely extinct family, may actually be part of the Dinomyidae; both groups are undoubtedly closely related. Genera
References1. ^{{cite journal|laysummary=http://journals.royalsociety.org/content/34j867846u164624/ |title=The largest fossil rodent |doi=10.1098/rspb.2007.1645 |url=http://journals.royalsociety.org/content/34j867846u164624/fulltext.pdf |format=pdf |last=Rinderknecht |first=Andrés |author2=R. Ernesto Blanco |date=2008-01-15 |journal=Proceedings of the Royal Society B: Biological Sciences |quote=Josephoartigasia monesi sp. nov. (family: Dinomyidae; Rodentia: Hystricognathi: Caviomorpha) |accessdate=2008-01-16 |volume=275 |pages=923–8 |pmid=18198140 |issue=1637 |pmc=2599941 }}{{dead link|date=December 2016 |bot=InternetArchiveBot |fix-attempted=yes }} 2. ^{{cite journal | author = Francis, J.C and A. Mones | year = 1966 | title = Artigasia magna n. g., n. sp. (Eumegamyinae), un roedor gigantesco de la época Pliocena Superior de las Barrancas de San Gregorio, Departamento de San José, República Oriental del Uruguay | journal = Kraglievana | volume = 3 | issue = | pages = 89–100}} 3. ^{{cite journal | author = Mones, A. | year = 2007 | title = Josephoartigasia, Nuevo nombre para Artigasia Francis & Mones, 1966 (Rodentia, Dinomyidae), non Artigasia Christie, 1934 (Nematoda, Thelastomatidae) | journal = Comun. Paleontol. Mus. Hist. Nat. Montevideo | volume = 36 | issue = | pages = 213–214}}
4 : Rodent families|Hystricognath rodents|Extant Miocene first appearances|Taxa named by Wilhelm Peters |
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