Gideon Algernon Mantell (Lewes, February 3, 1790 - London, November 10, 1852) - British geologist and paleontologist.
- Iguanodon Mantell, 1825
- Hylaeosaurus Mantell, 1833
- Regnosaurus Mantell, 1848
- Pelorosaurus Mantell, 1850
- Megalosaurus bucklandii Mantell, 1827
- Mosasaurus hoffmannii Mantell, 1829
- Hylaeosaurus armatus Mantell, 1833
- Regnosaurus northamptoni Mantell, 1848 [Nomen dubium]
- Mantell, G.A. 1825: Notice on the Iguanodon, a newly discovered fossil reptile, from the sandstone of Tilgate Forest, in Sussex. Philosophical Transactions of the Royal Society of London 115: 179-186.
- Mantell, G.A. 1827. "Illustrations of the geology of Sussex: a general view of the geological relations of the southeastern part of England, with figures and descriptions of the fossils of Tilgate Forest." Lupton Relfe, London, xii, 92 pp., Pls. I-XX, Map & Sections.
- Mantell, G.A. 1829: A tabular arrangement of the organic remains of the county of Sussex. Transactions of the Geological Society of London 2 (3): 201–216.
- Mantell, G.A. 1833. The Geology of the South-East of England. Longman Ltd., London.
- Mantell, G.A. 1848: On the structure of the jaws and teeth of the Iguanodon. Philosophical Transactions of the Royal Society of London 138: 183-202.
- Mantell, G.A. 1850: On the Pelorosaurus: an undescribed gigantic terrestrial reptile, whose remains are associated with those of the Iguanodon and other saurians in the strata of Tilgate Forest, in Sussex. Philosophical Transactions of the Royal Society of London 140: 379-390.