The Swiss palaeontologist Louis Agassiz visited Lyme Regis in 1834 and worked with Anning to obtain and study fish fossils found in the region. He was so impressed by Anning and her friend Elizabeth Philpot that he wrote in his journal: "Miss Philpot and Mary Anning have been able to show me with utter certainty which are the ichthyodorulite's dorsal fins of sharks that correspond to different types." He thanked both of them for their help in his book, Studies of Fossil Fish.
The Swiss palaeontologist Louis Agassiz visited Lyme Regis in 1834 and worked with Anning to obtain and study fish fossils found in the region. He was so impressed by Anning and her friend Elizabeth Philpot that he wrote in his journal: "Miss Philpot and Mary Anning have been able to show me with utter certainty which are the ichthyodorulite's dorsal fins of sharks that correspond to different types." He thanked both of them for their help in his book, Studies of Fossil Fish.