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APA Citation
Reich, M., Sprinkle, J., Lefebvre, B., Rössner, G. E., & Zamora, S. (2017). the first Ordovician cyclocystoid (Echinodermata) from Gondwana and its morphology, paleoecology, taphonomy, and paleogeography. Journal of paleontology, 91, 735–754. http://access.bl.uk/ark:/81055/vdc_100047554242.0x000042