Dryopithecus

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Dryopithecus
Temporal range: 12–9Ma
Miocene
Mandible fragment of Dryopithecus fontani from Saint-Gaudens, France (Middle Miocene, 11,5 My) ; cast from Museum national d'histoire naturelle, Paris
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Superfamily: Hominoidea
Family: Hominidae
Subfamily: Homininae
Tribe: Dryopithecini
Genus: Dryopithecus
Lartet, 1856
Species
  • Dryopithecus wuduensis
  • Dryopithecus fontani
  • Dryopithecus brancoi
  • Dryopithecus laietanus
  • Dryopithecus crusafonti

Dryopithecus was a genus of apes that is known from Eastern Africa into Eurasia during the late Miocene period. The first species of Dryopithecus was discovered at the site of Saint-Gaudens, Haute-Garonne, France, in 1856.[1] Other dryopithecids have been found in Hungary,[2] Spain,[3] and China.[4]

Like Sivapithecus, Dryopithecus was suspensory, had a large brain, and a delayed development, but, unlike the former, it had a gracile jaw with thinly enameled molars and suspensory forelimbs; Begun 2004 notes that the similarities and differences between them provides insight into the timing and paleogeography of hominid origins and the phylogenetic divide between Asian and Afro-European great apes. [5]

Description

Dryopithecus was about 4 feet tall in body length, and more closely resembled a monkey than a modern ape. The structure of its limbs and wrists show that it walked in a similar way to modern chimpanzees, but that it used the flat of its hands, like a monkey, rather than knuckle-walking, like modern apes.[6] Its face exhibited klinorhynchy, with its face being tilted downwards in profile.

It likely spent most of its life in trees, and was probably a brachiator, similar to modern orangutans and gibbons. Its molars had relatively little enamel, suggesting that it ate soft leaves and fruit, an ideal food for a tree-dwelling animal.[6]

The five-cusp and juvenile[7] fissure pattern of its molar teeth, known as the Y-5 arrangement, is typical of the dryopithecids and of hominoids in general.

Additional images

Dryopithecus fontani jaw in front view at the Geological Museum, Copenhagen 
Jaw of Dryopithecus fontani 
Stamps of Uzbekistan, 2002, of Dryopithecus maior 

Notes

  1. Pilbeam & Simons 1971
  2. Kordos & Begun 2001
  3. Harrison, Ribot & Gibert 1996
  4. Xue & Delson 1989
  5. Begun 2004, Abstract, Conclusions
  6. 6.0 6.1 Palmer 1999
  7. Simons & Meinel 1983

References

External links

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