Data from: Phylogeny and evolutionary history of diplobathrid crinoids (Echinodermata)

Order Diplobathrida is a major clade of camerate crinoids spanning the
Ordovician–Mississippian, yet phylogenetic relationships have only been
inferred for Ordovician taxa. This has hampered efforts to construct a
comprehensive tree of life for crinoids and develop a classification
scheme that adequately reflects diplobathrid evolutionary history. Here, I
apply maximum parsimony and Bayesian phylogenetic approaches to the fossil
record of diplobathrids to infer the largest tree of fossil crinoids to
date, with over 100 genera included. Recovered trees provide a framework
for evaluating the current classification of diplobathrids. Notably,
previous suborder divisions are not supported, and superfamily divisions
will require significant modification. Although numerous revisions are
required for families, most can be retained through reassignment of
genera. In addition, recovered trees were used to produce phylogeny‐based
estimates of diplobathrid lineage diversity. By accounting for ghost
lineages, phylogeny‐based richness estimates offer greater insight into
diversification and extinction dynamics than traditional taxonomy‐based
approaches alone and provide a detailed summary of the ~150 million‐year
evolutionary history of Diplobathrida. This study constitutes a major step
toward producing a phylogeny of the Crinoidea and documenting crinoid
diversity dynamics. In addition, it will serve as a framework for
subsequent phylogeny‐based investigations of macroevolutionary questions.