Phylogeny (162 most parsimonious trees) and age data for Asaphidae genera (Trilobita, Asaphida) taken from Bell and Braddy (2012).
A list containing 162 trees (
$tree) and a matrix of first and last appearances (
Bell, M. A. and Braddy, S. J., 2012, Cope's rule in the Ordovician trilobite Family Asaphidae (Order Asaphida): patterns across multiple most parsimonious trees: Historical Biology, v. 24, no. 3, p. 223-230.
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