Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Depiction of the intrinsic per lineage rate of diversification (intercepts on the y-axis) and carrying capacities (intercepts on the x-axis) for the three ‘faunas' Sepkoski [4] used to model the diversity trajectory of marine Phanerozoic families (inset; used with permission from the Paleontological Society).
