Contrasting the general with the particular in phylogenetics—a proposal to keep the meanings of mono/paraphyletic and clade/grade separated

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Duration: 3 min 30 s
Description: Abstract Clade and monophyletic group on one hand and grade and paraphyletic group on the other hand are commonly used as pairs of interchangeable terms. I question this apparent synonymy and propose that “monophyly” and “paraphyly” should refer to a property of a set, whereas “clade” and “grade” should apply to individuals resulting from evolutionary process.
Yann Bertrand
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