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This is a list of the largest rodents.
Rank
Common name
Scientific name
Status
Maximum body mass [kg (lb)]
Image
Notes
1
Giant pacarana
Josephoartigasia monesi
Fossil
500 kg (1,100 lb)
[1]
2
Phoberomys pattersoni
Fossil
250–700 kg (550–1,540 lb)
[2]
3
Capybara
Hydrochoerus hydrochaeris
Extant
91.2 kg (201 lb)
[3]
4
North American beaver
Castor canadensis
Extant
50 kg (110 lb)
5
Lesser capybara
Hydrochoerus isthmius
Extant
45.4 kg (100 lb)
6
Eurasian beaver
Castor fiber
Extant
40 kg (88 lb)
7
Cape porcupine
Hystrix africaeaustralis
Extant
30 kg (66 lb)
8
Crested porcupine
Hystrix cristata
Extant
27 kg (60 lb)
9
North American porcupine
Erethizon dorsatum
Extant
18 kg (40 lb)
10
Indian crested porcupine
Hystrix indica
Extant
18 kg (40 lb)
11
Coypu
Myocastor coypus
Extant
17 kg (37 lb)
12
Patagonian mara
Dolichotis patagonum
Extant
16 kg (35 lb)
13
Pacarana
Dinomys branickii
Extant
15 kg (33 lb)
14
Paca
Cuniculus paca
Extant
6–14 kg (13–31 lb)
^Josephoartigasia monesi at Fossilworks.org
^Phoberomys pattersoni at Fossilworks.org
^Mones, Alvaro; Ojasti, Juhani (16 June 1986). "Hydrochoerus hydrochaeris Brisson 1762". Mammalian Species (264): 1–7. doi:10.2307/3503784. JSTOR 3503784. S2CID 250991487.
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