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“New opabiniid diversifies the weirdest wonders of the euarthropod stem group”. Proceedings of the Royal Society B: Biological Sciences 289 (1968): 20212093. doi:10.1098/rspb.2021.2093. PMC 8826304. PMID 35135344. https://royalsocietypublishing.org/doi/10.1098/rspb.2021.2093.
↑ Hughes, Nigel C.; Hong, Paul S.; Hou, Jinbo; Fusco, Giuseppe (2017). “The Development of the Silurian Trilobite Aulacopleura koninckii Reconstructed by Applying Inferred Growth and Segmentation Dynamics: A Case Study in Paleo-Evo-Devo”. Frontiers in Ecology and Evolution 5. doi:10.3389/fevo.2017.00037. ISSN 2296-701X. https://www.frontiersin.org/article/10.3389/fevo.2017.00037.