The new animal phylogeny: reliability and implications.
basic_science · Level V
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- Record sourced from PubMed, PMID 10781043.
- Also identified by PMC identifier 34321.
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Abstract
DNA sequence analysis dictates new interpretation of phylogenic trees. Taxa that were once thought to represent successive grades of complexity at the base of the metazoan tree are being displaced to much higher positions inside the tree. This leaves no evolutionary "intermediates" and forces us to rethink the genesis of bilaterian complexity.
Medical subject headings
- Biological Evolution
- Genes, Homeobox
- Phylogeny