Evans, H.M. (1904)
A new cestraciont spine from the lower Triassic of Idaho. Bulletin of the Department of Geology, 3, 397–402

Cuny, G. (1998)
Primitive neoselachian sharks: A survey. Oryctos, 1, 3–21

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
DOI: 10.4072/rbp.2005.2.06