GROGAN, E.D. & LUND, R. (2008)
A basal elasmobranch, Thrinacoselache gracia n. gen. & sp. (Thrinacodontidae, new family) from the Bear Gulch limestone, Serpukhovian of Montana, USA. Journal of Vertebrate Paleontology, 28 (4): 970–988
DOI: 10.1671/0272-4634-28.4.970
GINTER, M. & TURNER, S. (2010)
The middle Paleozoic Selachian genus Thrinacodus. Journal of Vertebrate Paleontology, 30 (6): 1666–1672
DOI: 10.1080/02724634.2010.520785