A new stem group echinoid from the Triassic of China leads to a revised macroevolutionary history of echinoids during the end-Permian mass extinction

Thompson, J. R., Hu, S.-x., Zhang, Q.-Y., Petsios, E., Cotton, L. J., Huang, J.-Y., Zhou, C.-y., Wen, W., Bottjer, D. J.
Royal Society
Published 2018