Cascading trend of Early Paleozoic marine radiations paused by Late Ordovician extinctions.

ABSTRACT: The greatest relative changes in marine biodiversity accumulation occurred during the Early Paleozoic. The precision of temporal constraints on these changes is crude, hampering our understanding of their timing, duration, and links to causal mechanisms. We match fossil occurrence data to their lithostratigraphical ranges in the Paleobiology Database and correlate this inferred taxon range to a constructed set of biostratigraphically defined high-resolution time slices. In addition, we apply capture-recapture modeling approaches to calculate a biodiversity curve that also considers taphonomy and sampling biases with four times better resolution of previous estimates. Our method reveals a stepwise biodiversity increase with distinct Cambrian and Ordovician radiation events that are clearly

SUBMITTER: Rasmussen CMO 

PROVIDER: S-EPMC6462056 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature