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, 2018)
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