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 frequency of bivalve and gastropod DCWs at the genus level is unrelated to invasion intensity suffered by different regions after the end-Cretaceous mass extinction. IP, India-Pakistan area; GC, Gulf Coast of North America; EU, northern Europe; AF, northern Africa. Bars are 95% CIs.
