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

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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.

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Genus and species diversity curve of a) total richness (N_TOT/Δt) normalized by the number of informative formations (N_f/Δt) at the stage-scale, and b) total richness excluding singletons (N_tot−N_FL) normalized by the number of 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.