One of the most important shifts in evolutionary biology in the past 50 years is an increased
recognition of sluggish evolution and failures to adapt, which seem paradoxical in view of …

The origin or evolutionarysuccess' of taxa is often attributed to key innovations—aspects of
organismal phenotype that promote diversification. Different ways of delimiting taxa and …

In post-Cambrian time, five events-the end-Ordovician, end-Frasnian in the Late Devonian,
end-Permian, end-Triassic, and end-Cretaceous-are commonly grouped as the “big five” …

In explaining his individuality thesis, Michael T. Ghiselin provides extended discussions of
such philosophical topics as definition, the reality of various kinds of groups, and how we …

The end-Permian mass extinction, 251 million years (Myr) ago, was the most devastating
ecological event of all time, and it was exacerbated by two earlier events at the beginning …

All possible combinations of six tiering positions in relation to the substratum/water interface,
six motility levels and six feeding strategies define a complete theoretical ecospace of 216 …

The biomass of marine consumers increased during the Phanerozoic. This is indicated by
the increase in both fleshiness and average size of individuals of dominant organisms …

Global taxonomic richness is affected by variation in three components: within-community, or
alpha, diversity; between-community, or beta, diversity; and between-region, or gamma …

The Cambrian explosion is named for the geologically sudden appearance of numerous
metazoan body plans (many of living phyla) between about 530 and 520 million years ago …

Data from a comprehensive literature survey for the first time provide stage-level resolution
of Early Cretaceous through Pleistocene species diversity for nongeniculate coralline algae …