Table 1. Sampling-adjusted rate estimates and section rates
Origination
Extinction
Data source r ρ r ρ
Foote—COSUNA 0.502 0.325 0.756 0.704
Sepkoski—COSUNA 0.201 0.295 0.731 0.539
Foote—Sepkoski 0.328 0.274 0.703 0.545
  • Linear product—moment correlation coefficients (r) and Spearman rank-order correlation coefficients (ρ) between Paleozoic—Mesozoic first-differences in Foote's pulsed sampling-adjusted rate estimates (12), the COSUNA section results presented herein, and Sepkoski's face-value genus data (24). See text for discussion.