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  3. Testing Character Evolution Models in Phylogenetic Paleobiology
  • Supplemental data for this Element can be found here
  • Cited by 30
Publisher:
Cambridge University Press
Online publication date:
July 2021
Print publication year:
2021
Online ISBN:
9781009049016
DOI:
https://doi.org/10.1017/9781009049016
Subjects:
Earth and Environmental Sciences, Palaeontology and Life History, Evolutionary Biology
Series:
Elements of Paleontology
Information

Book description

Macroevolutionary inference has historically been treated as a two-step process, involving the inference of a tree, and then inference of a macroevolutionary model using that tree. Newer models blend the two steps. These methods make more complete use of fossils than the previous generation of Bayesian phylogenetic models. They also involve many more parameters than prior models, including parameters about which empiricists may have little intuition. In this Element, we set forth a framework for fitting complex, hierarchical models. The authors ultimately fit and use a joint tree and diversification model to estimate a dated phylogeny of the Cincta (Echinodermata), a morphologically distinct group of Cambrian echinoderms that lack the fivefold radial symmetrycharacteristic of extant members of the phylum. Although the phylogeny of cinctans remains poorly supported in places, this Element shows how models of character change and diversification contribute to understanding patterns of phylogenetic relatedness and testing macroevolutionary hypotheses.

References

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