Biology — Phylogeny: arthropods
Relationships among the major arthropod groups (branch lengths ≈ MYA).
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((Insects:400,Crustaceans:400):50,(Arachnids:430,Myriapods:430):20);
Relationships among the major arthropod groups (branch lengths ≈ MYA).
((Insects:400,Crustaceans:400):50,(Arachnids:430,Myriapods:430):20);