
Fig. 2. Perceptions of early tetrapod diversity at three points in research time, 1900, 1950, and 2000. Total numbers of valid species are indicated per series; the 1900 data distribution differs significantly from those for 1950 and 2000, but the 1950 and 2000 distributions do not differ significantly (see text).
Published as part of Bernard, Emma L., Ruta, Marcello, Tarver, James E. & Benton, Michael J., 2010, The fossil record of early tetrapods: Worker effort and the end-Permian mass extinction, pp. 229-239 in Acta Palaeontologica Polonica 55 (2) on page 232, DOI: 10.4202/app.2009.0025, http://zenodo.org/record/13281140
Biodiversity, Taxonomy
Biodiversity, Taxonomy
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