Note 180 — Chapter XXX

Animals of a gigantic size, and allied to the lizard family, formerly inhabited the latitudes of Britain. A monster (the Mosasaurus) much surpassing the largest living crocodile is found in our Sussex chalk-beds; and an animal allied to the Iguana, the iguanodon of Mantell, is of frequent occurrence in the strata upon which the chalk reposes in the weald of Sussex, the Isle of Wight, &c. Some bones of the iguanodon would indicate an animal more than 50 feet long.