Phoberomys pattersoni

Phoberomys pattersoni is an extinct rodent that lived in the ancient Orinoco River delta around 8 million years ago. It was the second-largest of the roughly seven species of its genus. Like many other rodents, Phoberomys was a herbivore with high-crowned premolars and molars.

Phoberomys pattersoni
Temporal range: Late Miocene (Huayquerian)
~9.0–6.8 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: †Neoepiblemidae
Genus: †Phoberomys
Species:
†P. pattersoni
Binomial name
†Phoberomys pattersoni
Mones 1980
Synonyms

Dabbenea pattersoni Mones 1980

Description

An almost complete skeleton was discovered in the Urumaco Formation at Urumaco, Venezuela, in 2000.[1] The new species was later classified with the name Phoberomys pattersoni in honor of palaeontologist Brian Patterson.[2] From the fossil, researchers have been able to reconstruct its size and probable lifestyle. It was 3 m (9.8 ft) long, with a tail at 1.5 m (4.9 ft), and probably weighed between 250 and 700 kg (550 and 1,540 lb)), making it for some years the largest known rodent for which good size and weight estimates were possible. Its congener Phoberomys insolita was a bit larger still, but it is not known from any reasonably complete remains, thus its size cannot be estimated more precisely.

In early 2008, the discovery of Josephoartigasia monesi was announced, which was even larger.

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See also

References
  1. Phoberomys pattersoni at Fossilworks.org
  2. Amos, Jonathan (September 18, 2003), "Giant rodent astonishes science", BBC News Online, retrieved 2008-03-18

Further reading
  • McNeill Alexander, R. (2003): A Rodent as Big as a Buffalo. Science vol. 301, p. 1678-9. (HTML abstract link)
  • Millien, Virginie and Helene Bovy (2010) : When Teeth and Bones Disagree: Body Mass Estimation of a Giant Extinct Rodent. Journal of Mammalogy vol. 91, p. 11-18.
  • Sánchez-Villagra, M.R. et al. (2003): The Anatomy of the World's Largest Extinct Rodent. Science vol. 301, p. 1708-10. (HTML abstract link)
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