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Atlantogenata

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Atlantogenata
Temporal range: Paleocene - Recent
Hoffmann's Two-toed Sloth
Scientific classification
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Atlantogenata
Superorders and Orders


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Atlantogenata is a proposed clade of mammals containing the cohorts or super-orders Xenarthra and Afrotheria. These groups originated and radiated in the South American and African continents, presumably in the Cretaceous. Together with Boreoeutheria it makes up Eutheria.

The monophyly of this grouping is supported by some genetic evidence.[1][2] Alternative hyphotheses are that Boreoeutheria and Afrotheria combine to form Epitheria, and that Boreoeutheria and Xenarthra combine to form a monophyletic group called Exafroplacentalia or Notolegia.[3]

Eutheria  

References

  1. ^ Waddell, P., Okada, N. & Hasegawa, M. 1999. Toward resolving the inter-ordinal relationships of placental mammals. Systematic Biology 48: 1–5.
  2. ^ Murphy, W.J., Pringle, T.H., Crider, T.A., Springer, M.S. & Miller, W. 2007. Using genomic data to unravel the root of the placental mammal phylogeny. Genome Research 17: 413–421.
  3. ^ Wildman, D.E.; Chen, C.; Erez, O.; Grossman, L.I.; Goodman, M. & Romero, R. 2006. Evolution of the mammalian placenta revealed by phylogenetic analysis. PNAS 103 (9): 3203–3208.