DescripcióSpecies Distribution Biodiversity after Chapman 2009.png
English: The distribution of numbers of known and undescribed (estimated) species on Earth, grouped by major taxonomic groups. Absolute number of species on the left (orange = estimated number of yet to be described species, blue = already described). Right: percentage of species already described (green) and estimated to be not yet known (yellow).
The data are taken from Chapman 2009, summarized and with some estimates added for yet to describe species.
The following changes were made: Many smaller groups aggregated (other Invertebrates encompasses more groups than in the original publication);
Agnatha, Cephalochordata, Tunicata, Algae were estimated to have at least 1.5× as many final species; Cyanophyta was estimated to have same known/unknown ratio as Protoctista.
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