References
- Beiträge , 48 – 48 . Taf. 1. fig. 1 a to d.
- Ann. Nat. Hist. ser. 4 , i 77 – 77 .
- Ann. Nat. Hist. ser. 4 , v 266 – 266 .
- See paper entitled Notes on the Remains of some Reptiles and Fishes from the Shales of the Northumberland Coal-field Ann. Nat. Hist. ser. 4 i 370 370
- See paper entitled On a Specimen of Acanthodes Wardii from the Lanarkshire Coal-field, and on Ctenacanthus hybodoides Trans. Geol. Soc. Glasgow iv 57 59 pt. 1.
- Williamson , W.C. 1851 . Investigations into the Structure and Development of the Scales and Bones of Fishes . Philosophical Transactions , : 669 – 679 . pt. 1
- Ann. Nat. Hist. ser. 4 , i 369 – 369 .