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.
The anatomy of a DCW in brachiopod order Spiriferida. (A) Spiriferid range-through genus richness trends. Orange and red bars mark the DS and LAD stages, respectively (Induan–Rhaetian). (B) The posterior probability of a change within the genus richness time series in A, calculated with a Bayesian change point algorithm (Materials and Methods). Probabilities falling below the 0.8 cutoff were excluded as significant change points.
