Atlantogenata: Difference between revisions
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'''Atlantogenata''' |
The '''Atlantogenata''' are a proposed [[clade]] of [[mammal]]s containing the cohorts or superorders [[Afrotheria]] and [[Xenarthra]]. These groups originated and radiated in the [[South America]]n and [[Africa]]n continents, presumably in the [[Cretaceous]]. Together with [[Boreoeutheria]], they make up [[Eutheria]]. The [[monophyly]] of this grouping was supported by some genetic evidence.<ref>{{Cite journal | last1 = Waddell | first1 = Peter J.| last2 = Okada | first2 = Norohiro| last3 = Hasegawa | first3 = Masami| doi = 10.1093/sysbio/48.1.1 | title = Towards Resolving the Interordinal Relationships of Placental Mammals | journal = [[Systematic Biology]] | volume = 48 | issue = 1 | pages = 1–5 | year = 1999 | pmid = 12078634| pmc = }}</ref><ref>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.</ref> |
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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]].<ref>{{Cite journal | last1 = Wildman | first1 = Derek E.| last2 = Chen | first2 = Caoyi| last3 = Erez | first3 = Offer| last4 = Grossman | first4 = Lawrence I.| last5 = Goodman | first5 = Morris| last6 = Romero | first6 = Roberto| title = Evolution of the mammalian placenta revealed by phylogenetic analysis | doi = 10.1073/pnas.0511344103 | journal = [[Proceedings of the National Academy of Sciences of the United States of America|Proceedings of the National Academy of Sciences]]| volume = 103 | issue = 9 | pages = 3203–3208 | year = 2006 | pmid = 16492730| pmc = 1413940}}</ref> |
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]].<ref>{{Cite journal | last1 = Wildman | first1 = Derek E.| last2 = Chen | first2 = Caoyi| last3 = Erez | first3 = Offer| last4 = Grossman | first4 = Lawrence I.| last5 = Goodman | first5 = Morris| last6 = Romero | first6 = Roberto| title = Evolution of the mammalian placenta revealed by phylogenetic analysis | doi = 10.1073/pnas.0511344103 | journal = [[Proceedings of the National Academy of Sciences of the United States of America|Proceedings of the National Academy of Sciences]]| volume = 103 | issue = 9 | pages = 3203–3208 | year = 2006 | pmid = 16492730| pmc = 1413940}}</ref> |
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Revision as of 23:02, 8 December 2015
| Atlantogenata Temporal range: Paleocene - Recent
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| African bush elephant (Afrotheria) | |
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| Giant anteater (Xenarthra) | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
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| Magnorder: | Atlantogenata
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| Superorders and Orders | |
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The Atlantogenata are 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 |
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References
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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
- Nikolaev, Sergey; Montoya-Burgos, Juan I.; Margulies, Elliott H.; NISC Comparative Sequencing Program; Rougemont, Jacques; Nyffeler, Bruno; Antonarakis, Stylianos E. (2007). "Early History of Mammals is Elucidated with the ENCODE Multiple Species Sequencing Data". PLoS Genetics. 3 (1): e2. doi:10.1371/journal.pgen.0030002. PMC 1761045. PMID 17206863.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - Springer, Mark S.; Murphy, William J.; Eizirik, Eduardo; O'Brien, Stephen J. (2003). "Placental mammal diversification and the Cretaceous–Tertiary boundary". Proceedings of the National Academy of Sciences. 100 (3): 1056–1061. doi:10.1073/pnas.0334222100. PMC 298725. PMID 12552136.
- Waddell, Peter J.; Kishino, Hirohisa; Ota, Rissa (2001). "A phylogenetic foundation for comparative mammalian genomics". Genome Informatics. 12: 141–154. PMID 11791233.
- 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.
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