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Procrustes distance trees. (A) Tree generated using the unweighted pair group method with arithmetic mean (UPGMA) method. (B) Tree generated using the neighbor joining (NJ) method. In both cases, A. afarensis is associated with Gorilla whereas either H. ergaster or H. neanderthalensis is associated with H. sapiens. Procrustes distances and significance values are found in Table S1.
