DOI: 10.5061/dryad.533j6c3
title: Data from: Hierarchical controls on extinction selectivity across the diplobathrid crinoid phylogeny

description: Identifying correlates of extinction risk is important for understanding
 the underlying mechanisms driving differential rates of extinction and
 variability in the temporal durations of taxa. Increasingly, it is
 recognized that the effects of multiple, potentially interacting variables
 and phylogenetic relationships should be incorporated when studying
 extinction selectivity to account for covariation of traits and shared
 evolutionary history. Here, I explore a variety of biological and
 ecological controls on genus longevity in the global fossil record of
 diplobathrid crinoids by analyzing the combined effects of species
 richness, habitat preference, body size, filtration fan density, and food
 size selectivity. I employ a suite of taxic and phylogenetic approaches to
 (1) quantitatively compare and rank the relative effects of multiple
 factors on taxonomic longevity, and (2) determine how phylogenetic
 comparative approaches alter interpretations of extinction selectivity. I
 find controls on diplobathrid genus duration are hierarchically
 structured, where species richness is the primary predictor of duration,
 habitat is the secondary predictor, and a combination of ecological and
 biological traits are tertiary controls. Ecology plays an important but
 complex role in the generation of crinoid macroevolutionary patterns.
 Notably, tolerance of environmental heterogeneity promotes increased genus
 duration across diplobathrid crinoids, and the effects of traits related
 to feeding ecology vary depending on habitat lithology. Finally, I find
 accounting for phylogeny does not consistently decrease the significance
 of correlations between traits and genus duration, as is commonly
 expected. Instead, the strength of relationships between traits and
 duration may increase, decrease, or remain statistically similar, and both
 the magnitude and direction of these shifts are generally unpredictable.
 However, traits with strong correlations and/or moderately large effect
 sizes (Cohen’s f2 &gt; 0.15) under taxic approaches tend to remain
 qualitatively unchanged under phylogenetic approaches.
description: Cole_SupplementaryMaterialsSupplementary tables and descriptions of associated data files.SuppData1_Cole_DiploGenusDataThe primary data file for all analyses conducted, containing stratigraphic ranges, lithology, species richness, and mean trait data for each diplobathrid genus.SuppData2_Cole_TStreesA nexus file containing the 1500 time-scaled trees used for all phylogeny-based analyses.SuppData3_Cole_MPTsA nexus file containing the 15 unscaled trees used for the initial phylogenetic input.SuppData4_Cole_PCAResults of PCA analysis.SuppData5_Cole_RawSpDataAn Excel file containing three worksheets, including: (a) Raw diplobathrid specimen data, including occurrence information (age, locality, formation), lithologic data, and measurement data. Number of terminal feeding appendages is estimated from pinnules per 5 mm given arm length and branching morphology. Pinnule density is calculated given the number of brachials per 5 mm of arm length. (b) Summary of data collected for each diplobathrid genus, including number of specimens measured, species measured, and the source of the measurement (literature, collections, etc.). (c) Abbreviations for museum collections used in Supplementary Data 5a.