Hawkins, T. (1840). The book of the great sea-dragons, Ichthyosauri and Plesiosauri, [gedolim taninim] gedolim taninim, of Moses: Extinct monsters of the ancient earth. With thirty plates, copied from skeletons in the author's collection of fossil organic remains, (deposited in the British museum.). W. Pickering.

Hawkins, Thomas. The Book of the Great Sea-dragons, Ichthyosauri and Plesiosauri, [gedolim Taninim] Gedolim Taninim, of Moses: Extinct Monsters of the Ancient Earth. With Thirty Plates, Copied from Skeletons in the Author's Collection of Fossil Organic Remains, (deposited in the British Museum.). London: W. Pickering, 1840.

Hawkins, Thomas. The Book of the Great Sea-dragons, Ichthyosauri and Plesiosauri, [gedolim Taninim] Gedolim Taninim, of Moses: Extinct Monsters of the Ancient Earth. With Thirty Plates, Copied from Skeletons in the Author's Collection of Fossil Organic Remains, (deposited in the British Museum.). W. Pickering, 1840.