Rasmussen, D. T.; Olson, S. L.; Simons, E. L. Fossil birds from the Oligocene Jebel Qatrani Formation, Fayum Province, Egypt. Smithsonian Contributions to Paleobiology. 1987, 62: 1–20. doi:10.5479/si.00810266.62.1(英语).
Smith, N. A. Sixteen vetted fossil calibrations for divergence dating of Charadriiformes (Aves, Neognathae). Palaeontologia Electronica. 2015, 18 (1): 4FC. doi:10.26879/410(英语).