Supplementary Table 3. Regression statistics for the SDD analyses of early Pliensbachian ammonites of the western Tethys and adjacent areas without null-similarity values and endemic species

Regression statistics for the SDD analyses of early Pliensbachian ammonites of the western Tethys and adjacent areas without null-similarity values and endemic species. At the locality/species and cluster/species levels, only assemblages with at least, respectively 4 species and 7 species were retained in the analyses. Abbreviations: n, number of taxa; N, number of sites; r2, coefficient of determination associated to the linear regressions; p, p-value associated to the linear regressions calculated using 10.000 randomizations; pM, p-value estimating the linear association between D and ln(S) calculated with a Mantel permutation test.