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Decoupled ecomorphological evolution and diversification in Neogene-Quaternary horses



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Cantalapiedra, Juan L. and Prado, José Luis and Hernández Fernández, Manuel and Alberdi, María Teresa (2017) Decoupled ecomorphological evolution and diversification in Neogene-Quaternary horses. Science, 355 (6325). pp. 627-630. ISSN Print ISSN 0036-8075 ; online ISSN 1095-9203

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Official URL: http://science.sciencemag.org/content/355/6325/627


The mode of evolution of body size and tooth morphology in the Neogene and Quaternary radiation of horses (7 living and 131 extinct species). We show that diversification pulses are a recurrent feature of equid evolution but that these pulses are not correlated with rapid bursts in phenotypic evolution. Instead, rapid cladogenesis seems repeatedly associated with extrinsic factors that relaxed diversity bounds, such as increasing productivity and geographic dispersals into the Old World. This evidence suggests that diversity dynamics in Equinae were controlled mainly by ecological limits under diversity dependence rather than rapid ecomorphological differentiation.

Item Type:Article
Uncontrolled Keywords:Morphology (Animals) Research, Horses - Genetic aspects, Animal morphology - Research Horses -- Genetic aspects
Subjects:Sciences > Geology > Paleontology
ID Code:47153
Deposited On:17 Apr 2018 07:42
Last Modified:11 Dec 2018 08:41

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