Australonyx

Australonyx is an extinct genus of ground sloths, endemic to South America during the Late Pleistocene. It was found in Brazil.[1]

Poço Azul
Poço Azul (Brazil)

Australonyx
Temporal range: Late Pleistocene (Lujanian)
~0.02–0.011 Ma
↓
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Superorder:
Xenarthra
Order:
Pilosa
Family:
Megalonychidae

Gervais, 1855
Genus:
†Australonyx

De Iuliis et al, 2009
Species:
†A. aquae

De Iuliis et al, 2009
Binomial name
†Australonyx aquae
De Iuliis et al, 2009

Discovery

The holotype specimen was recovered from Poço Azul, an underwater cave system in Nova Redenção, Bahia state. (The same cave also yielded remains of another extinct sloth species, Ahytherium.) The specimen was well preserved, consisting of both the front and back half of the skull (but missing the mid section), the mandible, most of the spine, and some elements from the limbs.[2] Additionally, a nearly identical almost complete skull from Rondônia can be referred to this species.[3]

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References
  1. "Australonyx in the Paleobiology Database". Fossilworks. Retrieved 2020-01-16.
  2. De Iuliis, Gerardo; Pujos, François; Cartelle, Cástor (December 2009). "A new ground sloth (Mammalia: Xenarthra) from the Quaternary of Brazil". Comptes Rendus Palevol. 8 (8): 705–715. doi:10.1016/j.crpv.2009.07.003.
  3. De Iuliis, Gerardo; Cartelle, Cástor; Pujos, François (May 2016). "New Pleistocene remains of megalonychid ground sloths (Xenarthra: Pilosa) from the intertropical Brazilian region". Journal of Paleontology. 90 (3): 578–587. doi:10.1017/jpa.2016.52.


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