White, E.G. (1936)
Some transitional elasmobranchs connecting the Catuloidea with the Carcharinoidea. American Museum Novitates, 879, 1–22
White, E.G. (1937)
Interrelationships of the elasmobranchs with a key to the Order Galea. Bulletin of the American Museum of Natural History, 74, 25–138