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Convexity Sign Video

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Definition

The property of a taxonomic group that a path can be drawn between any two members on a cladogram or phylogenetic tree without leaving the group. Monophyletic and paraphyletic groups are convex, whereas polyphyletic groups are not.

Source: Hickman, C.P., et al. 2011. Integrated Principles of Zoology. Fifteenth Edition. McGraw-Hill Higher Education.
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