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Atlantogenata: Difference between revisions

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Below shows the phylogeny of the extant atlantogenate families.
{{clade|style=font-size:100%
|label1='''Atlantogenata'''
|1={{Clade
|label1=[[Xenarthra]]
|1={{Clade
|label1=[[Cingulata]]
|1={{Clade
|1=[[Dasypus|Dasypodidae]]
|2=[[Chlamyphoridae]]
}}
|label2=[[Pilosa]]
|2={{Clade
|label1=[[Anteater|Vermilingua]]
|1={{Clade
|1=[[Cyclopedidae]]
|2=[[Myrmecophagidae]]
}}
|label2=[[Sloth|Folivora]]
|2={{Clade
|1=[[Three-toed sloth|Bradypodidae]]
|2=[[Megalonychidae]] }} }} }}
|label2=[[Afrotheria]]
|2={{Clade
|label1=[[Afroinsectiphilia]]
|1={{Clade
|label1=[[Tubulidentata]]
|1=[[Orycteropodidae]]
|label2=[[Afroinsectivora]]
|2={{Clade
|label1=[[Macroscelidea]]
|1=[[Macroscelididae]]
|label2=[[Afrosoricida]]
|2={{Clade
|1=[[Chrysochloridae]]
|2=[[Tenrecidae]]
}} }} }}
|label2=[[Paenungulata]]
|2={{Clade
|label1=[[Hyrax|Hyracoidea]]
|1=[[Hyrax|Procaviidae]]
|label2=[[Tethytheria]]
|2={{Clade
|label1=[[Proboscidea]]
|1=[[Elephantidae]]
|label2=[[Sirenia]]
|2={{Clade
|1=[[Dugongidae]]
|2=[[Trichechidae]]
}} }} }} }} }} }}


==References==
==References==

Revision as of 18:20, 4 March 2016

Atlantogenata
Temporal range: Paleocene - Recent
African bush elephant (Afrotheria)
Giant anteater (Xenarthra)
Scientific classification
Kingdom:
Phylum:
Class:
Infraclass:
Magnorder:
Atlantogenata
Superorders and Orders


See text for more details

Atlantogenata is a proposed clade of mammals containing the cohorts or superorders Afrotheria and Xenarthra. These groups originated and radiated in the South American and African continents, presumably in the Cretaceous. Together with Boreoeutheria, they make up Eutheria. The monophyly of this grouping was supported by some genetic evidence.[1][2]

Alternative hypotheses are that Boreoeutheria and Afrotheria combine to form Epitheria (as generally supported by anatomical and other physiological evidence) or that Boreoeutheria and Xenarthra combine to form Exafroplacentalia or Notolegia.[3]

Updated analysis of transposable element insertions around the time of divergence strongly supports the fourth hypothesis of a near-concomitant origin (trifurcation) of the three superorders of mammals.[4][5]

Eutheria  

Below shows the phylogeny of the extant atlantogenate families.

References

  1. ^ Waddell, Peter J.; Okada, Norohiro; Hasegawa, Masami (1999). "Towards Resolving the Interordinal Relationships of Placental Mammals". Systematic Biology. 48 (1): 1–5. doi:10.1093/sysbio/48.1.1. PMID 12078634.
  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, Derek E.; Chen, Caoyi; Erez, Offer; Grossman, Lawrence I.; Goodman, Morris; Romero, Roberto (2006). "Evolution of the mammalian placenta revealed by phylogenetic analysis". Proceedings of the National Academy of Sciences. 103 (9): 3203–3208. doi:10.1073/pnas.0511344103. PMC 1413940. PMID 16492730.
  4. ^ Nishihara, H.; Maruyama, S.; Okada, N. (2009). "Retroposon analysis and recent geological data suggest near-simultaneous divergence of the three superorders of mammals". Proceedings of the National Academy of Sciences. 106 (13): 5235. doi:10.1073/pnas.0809297106.
  5. ^ Churakov, G.; Kriegs, J. O.; Baertsch, R.; Zemann, A.; Brosius, J. R.; Schmitz, J. R. (2009). "Mosaic retroposon insertion patterns in placental mammals". Genome Research. 19 (5): 868–875. doi:10.1101/gr.090647.108. PMC 2675975. PMID 19261842.

Further reading