Mammalian Morphology Database and Placental Phylogeny Analysis
Author Information
Author(s): Asher Robert J
Primary Institution: Museum of Zoology, University of Cambridge
Hypothesis
How do morphological characters influence the phylogenetic relationships among placental mammals?
Conclusion
The study supports the placement of the placental mammal root at either Afrotheria or Xenarthra, highlighting the significant impact of morphological data on phylogenetic analysis.
Supporting Evidence
- The study reinforces the consensus on the clades of Afrotheria, Xenarthra, Euarchontoglires, and Laurasiatheria.
- Combined analyses of DNA and morphology support a basal position for Afrotheria.
- Even a small morphological dataset can significantly influence the placement of the placental root.
Takeaway
This study created a website with information about mammal shapes and used it to better understand how different mammals are related to each other.
Methodology
The study combined morphological data with DNA sequences and used maximum parsimony and Bayesian analyses to investigate mammalian interrelationships.
Limitations
The morphological dataset is small and may not fully resolve the phylogeny of several fossil taxa.
Statistical Information
P-Value
0.0126
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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