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APA Citation
O'Connor, J., Wang, X., Sullivan, C., Wang, Y., Zheng, X., Hu, H., Zhang, X., & Zhou, Z. (2018). first report of gastroliths in the Early Cretaceous basal bird Jeholornis. Cretaceous research, 84, 200–208. http://access.bl.uk/ark:/81055/vdc_100056811244.0x000050