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Octodontotherium

From Wikipedia, the free encyclopedia
Extinct genus of ground sloths

Octodontotherium
Octodontotherium crassidens fossil
Scientific classificationEdit this classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Pilosa
Family:Mylodontidae
Genus:Octodontotherium
Ameghino, 1894
Species
  • O. crassidens
  • O. grandae

Octodontotherium (meaning "eight toothed beast") is anextinctgenus ofground sloth of thefamilyMylodontidae,endemic toSouth America during theLate Oligocene (Deseadan). It lived from 29 to 23Mya, existing for approximately6 million years.[1]

Fossil distribution is exclusive to Santa Cruz Province,Argentina (Deseado andSarmiento Formations) andBolivia (Salla Formation).[1]

It was a large herbivore that fed on various types of plants.

Taxonomy

[edit]

Octodontotherium was named byAmeghino (1894). It was assigned to Mylodontidae by Carroll (1988); and toMylodontinae by Gaudin (1995).[2][3]

Palaeoecology

[edit]

Orthodentine microwear analysis suggests thatOctodontotherium was an unspecialised herbivore able to feed on a variety of different plants.[4]

References

[edit]
  1. ^abPaleoBiology Database:Octodontotherium, basic info
  2. ^R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company, New York 1-698
  3. ^T. J. Gaudin. 1995. The ear region of edentates and the phylogeny of Tardigrada (Mammalia, Xenarthra). Journal of Vertebrate Paleontology 15(3):672-705
  4. ^Kalthoff, Daniela C.; Green, Jeremy L. (28 July 2017)."Feeding Ecology in Oligocene Mylodontoid Sloths (Mammalia, Xenarthra) as Revealed by Orthodentine Microwear Analysis".Journal of Mammalian Evolution.25 (4):551–564.doi:10.1007/s10914-017-9405-x.ISSN 1064-7554.PMC 6209052.PMID 30443148. Retrieved14 November 2024 – via Springer Link.
Pilosan genera
Vermilingua
Cyclopedidae
Myrmecophagidae
Megalocnidae
Scelidotheriidae
Mylodontinae
Lestodontini
Mylodontini
Megatherioidea
    • see below↓
Neocnus comes
Megalonychidae
Ortotheriinae
Megalonychinae
Nothrotheriidae
Nothrotheriinae
Megatheriidae
Planopsinae
Megatheriinae
Megatherium
Octodontotherium


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