Davidson, P. (1919)
A cestraciont spine from the Middle Triassic of Nevada. Bulletin of the Department of Geology, 11(4), 433–435
Mutter, R.J. & Rieber, H. (2005)
Pyknotylacanthus spathianus gen. et sp. nov., a new ctenacanthoid from the Early Triassic of Bear Lake (Idaho, USA). Revista Brasileira de Paleontologia, 8(2), 139–148