Resilience of infaunal ecosystems during the Early Triassic greenhouse Earth.

The article presents a study which analyzed abundant trace fossils from different sections across the Permian-Triassic boundary in China and reported key metrics of ichnodiversity, ichnodisparity, ecospace utilization, and ecosystem engineering. Topics discussed include environmental selectivity in behavioral and ecologic categories of infauna and potential controls, analysis of behavioral diversification, and calculation of ecosystem engineering of infauna.