It is not a “sister” group because some crustaceans are more related to insects than to other crustaceans; check the family trees here. The accurate way to say this is that Hexapoda is clade within Pancrustacea, and that “crustaceans” is a paraphyletic group composed of all Pancrustacea minus the ones belonging to Hexapoda.
lvxferre@mander.xyz 2 weeks ago
It is not a “sister” group because some crustaceans are more related to insects than to other crustaceans; check the family trees here. The accurate way to say this is that Hexapoda is clade within Pancrustacea, and that “crustaceans” is a paraphyletic group composed of all Pancrustacea minus the ones belonging to Hexapoda.