Macroevolution information

Macroevolution usually means the evolution of large-scale structures and traits that go significantly beyond the intraspecific variation found in microevolution (including speciation).^[1]^[2]^[3] In other words, macroevolution is the evolution of taxa above the species level (genera, families, orders, etc.).^[4]

Macroevolution is often thought to require the evolution of completely new structures such as entirely new organs. However, fundamentally novel structures are not necessary for dramatic evolutionary change. For instance, the evolution of mammal diversity in the past 100 million years has not required any major innovation.^[5] All of this diversity can be explained by modification of existing organs, such as the evolution of elephant tusks from canine teeth.

^ Stanley, S. M. (1 February 1975). "A theory of evolution above the species level". Proceedings of the National Academy of Sciences. 72 (2): 646–50. Bibcode:1975PNAS...72..646S. doi:10.1073/pnas.72.2.646. ISSN 0027-8424. PMC 432371. PMID 1054846.
^ Gould, Stephen Jay (2002). The structure of evolutionary theory. Cambridge, Mass.: Belknap Press of Harvard University Press. ISBN 0-674-00613-5. OCLC 47869352.
^ Hautmann, Michael (2020). "What is macroevolution?". Palaeontology. 63 (1): 1–11. Bibcode:2020Palgy..63....1H. doi:10.1111/pala.12465. ISSN 0031-0239.
^ Philiptschenko, J. (1927). Variabilität und Variation. Berlin: Borntraeger.
^ Meredith, R. W.; Janecka, J. E.; Gatesy, J.; Ryder, O. A.; Fisher, C. A.; Teeling, E. C.; Goodbla, A.; Eizirik, E.; Simao, T. L. L.; Stadler, T.; Rabosky, D. L.; Honeycutt, R. L.; Flynn, J. J.; Ingram, C. M.; Steiner, C. (28 October 2011). "Impacts of the Cretaceous Terrestrial Revolution and KPg Extinction on Mammal Diversification". Science. 334 (6055): 521–524. Bibcode:2011Sci...334..521M. doi:10.1126/science.1211028. ISSN 0036-8075. PMID 21940861. S2CID 38120449.

[:0-1] Stanley, S. M. (1 February 1975). "A theory of evolution above the species level". Proceedings of the National Academy of Sciences. 72 (2): 646–50. Bibcode:1975PNAS...72..646S. doi:10.1073/pnas.72.2.646. ISSN 0027-8424. PMC 432371. PMID 1054846.

[2] Gould, Stephen Jay (2002). The structure of evolutionary theory. Cambridge, Mass.: Belknap Press of Harvard University Press. ISBN 0-674-00613-5. OCLC 47869352.

[:1-3] Hautmann, Michael (2020). "What is macroevolution?". Palaeontology. 63 (1): 1–11. Bibcode:2020Palgy..63....1H. doi:10.1111/pala.12465. ISSN 0031-0239.

[:2-4] Philiptschenko, J. (1927). Variabilität und Variation. Berlin: Borntraeger.

[5] Meredith, R. W.; Janecka, J. E.; Gatesy, J.; Ryder, O. A.; Fisher, C. A.; Teeling, E. C.; Goodbla, A.; Eizirik, E.; Simao, T. L. L.; Stadler, T.; Rabosky, D. L.; Honeycutt, R. L.; Flynn, J. J.; Ingram, C. M.; Steiner, C. (28 October 2011). "Impacts of the Cretaceous Terrestrial Revolution and KPg Extinction on Mammal Diversification". Science. 334 (6055): 521–524. Bibcode:2011Sci...334..521M. doi:10.1126/science.1211028. ISSN 0036-8075. PMID 21940861. S2CID 38120449.

Macroevolution information

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