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The '''Dinomyidae''' are a [[family (biology)|family]] of [[South America]]n [[hystricognath]] [[rodent]]s: the dinomyids were once a very speciose group, but now contains only a single living species, the [[capybara]]. Several of the extinct dinomyids were among the largest rodents known to date; these included the [[bison]]-sized ''[[Josephoartigasia monesi]]''<ref>{{cite journal|lay-url= |title=The largest fossil rodent |doi=10.1098/rspb.2007.1645 |url= |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) |volume=275 |pages=923–8 |pmid=18198140 |issue=1637 |pmc=2599941 }}{{dead link|date=December 2016 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> and the smaller ''[[Josephoartigasia magna]]''.<ref name=Francis&Mones>{{cite journal | author = Francis, J.C. and [[Álvaro Mones|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 | pages = 89–100}}</ref> The dinomyids are thought to have occupied [[ecological niche]]s associated with large grazing mammals due to their ability to compete with the [[Meridiungulata|native ungulate]]s of South America. These large forms disappeared after the formation of a [[Great American Interchange|connection]] to North America. The modern pacarana is only modest in size, considerably smaller than the [[capybara]].
The '''Dinomyidae''' are a [[family (biology)|family]] of [[South America]]n [[hystricognath]] [[rodent]]s: 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]]''<ref>{{cite journal |title=The largest fossil rodent |doi=10.1098/rspb.2007.1645 |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) |volume=275 |pages=923–8 |pmid=18198140 |issue=1637 |pmc=2599941 }}</ref> and the smaller ''[[Josephoartigasia magna]]''.<ref name=Francis&Mones>{{cite journal | author = Francis, J.C. and [[Álvaro Mones|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 | pages = 89–100}}</ref> The dinomyids are thought to have occupied [[ecological niche]]s associated with large grazing mammals due to their ability to compete with the [[Meridiungulata|native ungulate]]s of South America. On the other side, they could feed on aquatic or swampy plants along the ancient rivers.<ref>{{cite book
| url = https://books.google.com/books?id=-HWADwAAQBAJ
| title = History of Terrestrial Mammals in South America
| publisher = Springer International Publishing
| date = 2018
| access-date = 2022-08-27
| page = 151
| author = Thomas Defler
| isbn = 9783319984490
}}</ref> These large forms disappeared after the formation of a [[Great American Interchange|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.
The [[Neoepiblemidae]], an entirely extinct family, may actually be part of the Dinomyidae; both groups are undoubtedly closely related.
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**Subfamily: †[[Eumegamyinae]]
**Subfamily: †[[Eumegamyinae]]
<!-- ***†''[[Artigasia]]'' apparently preoccupied by a worm; ''Josephoartigasia'' is the replacement-->
<!-- ***†''[[Artigasia]]'' apparently preoccupied by a worm; ''Josephoartigasia'' is the replacement-->
***†''[[Arazamys]]''<ref>{{cite journal | author1 = Rinderknecht, A. |author2 = Bostelmann, E. |author3= Ubilla, M. |title= New genus of giant Dinomyidae (Rodentia: Hystricognathi: Caviomorpha) from the late Miocene of Uruguay |journal = [[Journal of Mammalogy]] |year = 2011 |volume= 92 |issue = 1 |pages = 169-178 }}</ref>
***†''[[Briaromys]]''
***†''[[Briaromys]]''
***†''[[Colpostemma]]''
***†''[[Colpostemma]]''
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***†''[[Eumegamys]]''
***†''[[Eumegamys]]''
***†''[[Gyriabrus]]''
***†''[[Gyriabrus]]''
***†''[[Isostylomys]]''<ref>{{cite journal | author1 = Rinderknecht, A. |author2 = Bostelmann, E. |author3= Ubilla, M. |url=https://www.tandfonline.com/doi/full/10.1080/14772019.2017.1285360 |title=Making a giant rodent: cranial anatomy and ontogenetic development in the genus ''Isostylomys'' (Mammalia, Hystricognathi, Dinomyidae) |accessdate=2023-11-25 |year = 2018 |volume= 16 |issue = 3 |pages = 245-261 |journal = [[Journal of Systematic Palaeontology]] }}</ref>
***†''[[Josephoartigasia]]''<ref name=Mones>{{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 | pages = 213–214}}</ref>
***†''[[Josephoartigasia]]''<ref name=Mones>{{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 | pages = 213–214}}</ref>
***†''[[Orthomys]]''
***†''[[Orthomys]]''
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{{Taxonbar|from=Q135889}}
{{Taxonbar|from=Q135889}}


[[Category:Dinomyidae| ]]
[[Category:Rodent families]]
[[Category:Rodent families]]
[[Category:Hystricognath rodents]]
[[Category:Hystricognath rodents]]

Latest revision as of 04:51, 27 November 2023

Dinomyidae
Temporal range: Early Miocene–Recent
Josephoartigasia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Chinchilloidea
Family: Dinomyidae
Peters, 1873
Genera

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. On the other side, they could feed on aquatic or swampy plants along the ancient rivers.[3] 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

[edit]

References

[edit]
  1. ^ Rinderknecht, Andrés; R. Ernesto Blanco (2008-01-15). "The largest fossil rodent". Proceedings of the Royal Society B: Biological Sciences. 275 (1637): 923–8. doi:10.1098/rspb.2007.1645. PMC 2599941. PMID 18198140. Josephoartigasia monesi sp. nov. (family: Dinomyidae; Rodentia: Hystricognathi: Caviomorpha)
  2. ^ Francis, J.C. and A. Mones (1966). "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". Kraglievana. 3: 89–100.
  3. ^ Thomas Defler (2018). History of Terrestrial Mammals in South America. Springer International Publishing. p. 151. ISBN 9783319984490. Retrieved 2022-08-27.
  4. ^ Rinderknecht, A.; Bostelmann, E.; Ubilla, M. (2011). "New genus of giant Dinomyidae (Rodentia: Hystricognathi: Caviomorpha) from the late Miocene of Uruguay". Journal of Mammalogy. 92 (1): 169–178.
  5. ^ Rinderknecht, A.; Bostelmann, E.; Ubilla, M. (2018). "Making a giant rodent: cranial anatomy and ontogenetic development in the genus Isostylomys (Mammalia, Hystricognathi, Dinomyidae)". Journal of Systematic Palaeontology. 16 (3): 245–261. Retrieved 2023-11-25.
  6. ^ Mones, A. (2007). "Josephoartigasia, Nuevo nombre para Artigasia Francis & Mones, 1966 (Rodentia, Dinomyidae), non Artigasia Christie, 1934 (Nematoda, Thelastomatidae)". Comun. Paleontol. Mus. Hist. Nat. Montevideo. 36: 213–214.
  • McKenna, Malcolm C.; Bell, Susan K. (1997). Classification of Mammals Above the Species Level. New York: Columbia University Press. p. 631 pp. ISBN 0-231-11013-8.
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