Project 2800: H.-J. Sun, M. R. Smith, H. Zeng, F.-C. Zhao, G.-X. Li, M.-Y. Zhu. 2018. Hyoliths with pedicles illuminate the origin of the brachiopod body plan. Proceedings of the Royal Society B: Biological Sciences. 285 (1887):20181780.
This project has 2 specimens.