ArticleScientific reports2019
Diversity and Disparity of Therocephalia: Macroevolutionary Patterns through Two Mass Extinctions.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Extinction drives both expansion and contraction of morphological disparity in trilobites.Proceedings. Biological sciences · 2025Article
- Derived faunivores are the forerunners of major synapsid radiations.Nature ecology & evolution · 2023Article
- Early Origins of Divergent Patterns of Morphological Evolution on the Mammal and Reptile Stem-Lineages.Systematic biology · 2022Article
- Multiple paths to morphological diversification during the origin of amniotes.Nature ecology & evolution · 2021Article
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3 authors.
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Abstract
Mass extinctions have the potential to substantially alter the evolutionary trends in a clade. If new regions of ecospace are made available, the clade may radiate. If, on the other hand, the clade passes through an evolutionary "bottleneck" by substantially reducing its species richness, then subsequent radiations may be restricted in the disparity they attain. Here we compare the patterns of diversity and disparity in the Therocephalia, a diverse lineage of amniotes that survived two mass extinction events. We use time calibrated phylogeny and discrete character data to assess macroevolutionary patterns. The two are coupled through the early history of therocephalians, including a radiation following the late Guadalupian extinction. Diversity becomes decoupled from disparity across the end-Permian mass extinction. The number of species decreases throughout the Early Triassic and never recovers. However, while disparity briefly decreases across the extinction boundary, it recovers and remains high until the Middle Triassic.
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