This may be the reason why biologists have only in the last few decades come to develop a rigorous understanding of phylogenetic trees. This understanding allows present-day researchers to use ...

And, while other branches of the human evolutionary tree are vigorously debated ... variation within a species is largely a taxonomic issue rather than a phylogenetic one simply because fossil ...

Zoologische Beitraege 36: 83-124. "The monophyly of the Endopterygota (= Holometabola) is considered firmly established, except that the evidence for including the Strepsiptera in this taxon is ...

The study, titled "Phylogenetic and taxonomic revisions of Jurassic sea ... This method enabled the time calibration of the ...

Some species were not as easy to separate based on morphology alone, but as the gene sequences differ between species, the phylogenetic tree was informative and provided additional evidence of new ...