Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2008 Nov 17;3(11):e3733. doi: 10.1371/journal.pone.0003733

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Fröbisch.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

a) Species diversity curve (N_TOT/Δt) and the number of species informative formations (N_f/Δt) at the stage-scale, and b) species diversity curve excluding singletons (N_tot−N_FL) and the number of species informative formations (N_f) at the 1-Ma-scale. Dotted lines indicate an artificial low in richness as a result of the gap in the fossil record of anomodonts in the late Early Triassic (Olenekian). Dashed lines indicate an artificially increased richness caused by the coarse correlation of Triassic anomodont faunas at the 1-Ma-scale.