Hello all. I have two basal animals belonging to sub-phyla cephalochordate and urochordate (both in the chordate phylum). In different phylogenetic studies, cephalochordates evolved before urochordate, in other studies, urochordate comes before cephalochordates. Its vital for my study to identify which truly evolved first. However, I am trying to figure out a way to go about this and what are the factors to consider or use for building a phylogenetic tree that can help resolve this? thanks
Question: Looking for suggestions: what is used to mainly place different sub-phyla in the order in which they evolved?
26 days ago by
jaqx008 • 40
jaqx008 • 40 wrote:
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