Project 891: L. M. Dávalos, P. M. Velazco, O. M. Warsi, P. D. Smits, N. B. Simmons. 2014. Integrating Incomplete Fossils by Isolating Conflicting Signal in Saturated and Non-Independent Morphological Characters. Systematic Biology. 63 (4):582-600.
This project has 501 specimens.