A new study led by University of Wisconsin-Oshkosh geologist Timothy Paulsen and University of Colorado Boulder ...

We demonstrate an approach for quantifying turnover of communities over the Phanerozoic Eon. Using network analysis of fossil occurrence data, we provide the first estimates of appearance and ...

Osmium isotope compositions of the PNG peridotites are variable (Os-187/Os-188 = 0.1204 to 0.1611), but fall within the range of peridotites derived from Phanerozoic oceanic mantle, providing no ...

Speciation is the process by which a single species gives rise to two daughter species, which are genetically distinct and eventually unable to interbreed. Speciation can occur as a result of ...

The implications of these observations for the geological record are not simple. Throughout the Phanerozoic, Ca SW fluctuated between the modern value of ~10.3 mM to a maximum of ~30 to 40 mM (51, 52) ...