Data from: Taxonomic structure of the fossil record is shaped by sampling bias

Graeme T. Lloyd, Jeremy R. Young & Andrew B. Smith
Understanding biases that affect how species are partitioned into higher taxa is critical for much of palaeobiology, as higher taxa are commonly used to estimate species diversity through time. Using the deep-sea record of coccolithophorid microfossils over the last 150 million years (myr), we demonstrate that sampling and taxonomic effort are important drivers of the species/genus ratio. An unexpected two-stepped change in the ratio of species to genera over the last 150 myr correlates strongly...
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