Woodward, A.S. (1918)
On two new elasmobranch fishes (Crossorhinus jurassicus sp. nov. and Protospinax annectans gen. et sp. nov.) from the Upper Jurassic lithographic stone of Bavaria. Proceedings of the Zoological Society of London, 1918, 231–235

Fowler, H.W. (1947)
New taxonomic names of fish-like vertebrates. Notulae Naturae, 187, 1–16

Andrews, S.M. & Gardiner, B.G. & Miles, R.S. & Patterson, C. (1967)
CHAPTER 26 Pisces In The Fossil Record. HARLAND, W.B. et al. (Eds.) 1967, London (Geological Society), pp: 627-683