| Description | Watercolour studies of the maxillary of various species of fossil fish by Joseph Dinkel, 1847, comprising:
Upper and lower maxillary of Ischyodus brevirostris Egerton, from the Gault Greensand, Folkestone in the cabinets of Egerton & Enniskillen; lower maxillary from an unidentified fossil fish; upper maxillary of Elasmodus Hunteri Egerton, from the London Clay, Bracklesham, in the cabinet of Frederick Dixon; intermaxillary of Edaphodon gigas Egerton, from the Chalk, Worthing, from the cabinet of Frederick Dixon; intermaxillary of Edaphodon Mantelli Agassiz, from the Chalk, Sussex, in the cabinet of Frederick Dixon; upper maxillary of Elasmodus Hunteri Egerton, from the London Clay, Bracklesham, in the cabinet of Frederick Dixon. |
| Administrative History | Egerton renamed Ischyodus gigas Egerton to Edaphodon gigas Egerton in 1847, see: Newton, E T, 'The Chimaeroid Fishes of the British Cretaceous Rocks', Memoirs of the Geological Survey, Monograph IV, 1878, p18. |
| Publication Note | Ischyodus brevirostris Egerton referenced in Agassiz, J L R. 'Recherches sur les Poissons Fossiles' (1833-1843/1844), Vol 3, p344; Elasmodus Hunteri referenced in Mem Geol Survey Decade 6, pl1; Edaphodon gigas Egerton referenced in 'Proc Geol Soc', vol 4, pt1, p211, also reproduced in Newton, E T, 'The Chimaeroid Fishes of the British Cretaceous Rocks', Memoirs of the Geological Survey, Monograph IV, 1878, pl V, fig 1. |