THE AGE AND RELATIONSHIPS OF THE MAJOR ANIMAL PHYLA.

@article{Lynch1999THEAA,
  title={THE AGE AND RELATIONSHIPS OF THE MAJOR ANIMAL PHYLA.},
  author={Michael Lynch},
  journal={Evolution; international journal of organic evolution},
  year={1999},
  volume={53 2},
  pages={
          319-325
        }
}
Given the uncertainties in the fossil record and the paucity of informative morphological characters, there is still considerable uncertainty as to the phylogenetic affinities and times of origins of essentially all of the phyla of animals. A multilocus analysis of amino-acid sequence data for mitochondrial genes suggests that the major triploblast phyla began diverging approximately 630 million years ago. These results support the hypothesis that the so-called Cambrian radiation of animals… CONTINUE READING
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