Theoretical Size Distribution of Fossil Taxa
Author Information
Author(s): Reed William J, Hughes Barry D
Primary Institution: Department of Mathematics and Statistics, University of Victoria, Canada; Department of Mathematics and Statistics, University of Melbourne, Australia
Hypothesis
What is the theoretical size distribution of fossil taxa based on a null model of macroevolution?
Conclusion
The study provides analytic results for the size distributions of taxa and probabilities of monotypic taxa under a birth-and-death model.
Supporting Evidence
- The study develops a mathematical model to analyze the size distributions of fossil taxa.
- Results indicate that both background and cataclysmic extinctions significantly influence the size distribution of taxa.
- The findings can help test the validity of the birth-and-death model against fossil records.
Takeaway
This study looks at how different types of extinctions affect the sizes of fossil groups over time, helping us understand how species evolve and go extinct.
Methodology
The authors developed a mathematical model to analyze the size distributions of fossil taxa based on a birth-and-death process with both background and cataclysmic extinctions.
Limitations
The analysis is incomplete, particularly in cases involving both background and cataclysmic extinctions.
Digital Object Identifier (DOI)
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