Chondrichthyes - Chimaeriformes - Chimaeridae
Agassiz's livraison issued in April 1843 (Brignon, 2014), but Egerton's article not issued until at least November 1843.
Alternative spellings: Ischiodon, Ischyodon
Full reference: L. Agassiz. 1843. Recherches Sur Les Poissons Fossiles. Tome III (15me, 16me livraison) 157-390
Parent taxon: Chimaera according to L. Agassiz 1843
See also Owen 1859
Sister taxa: Chimaera (Psittacodon), Chimaera furcata, Chimaera pliocenica, Chimaera venablesae
Subtaxa: Chimaera (Ischyodon) beaumontii Chimaera (Ischyodon) brevirostris Chimaera (Ischyodon) dufrenoyi Chimaera (Ischyodon) dutertrii Chimaera (Ischyodon) emarginata Chimaera (Ischyodon) helvetica Chimaera (Ischyodon) johnsonii Chimaera (Ischyodon) tessoni Ischyodon bucklandi
Ecology: nektobenthic carnivore
Distribution:
• Cretaceous of Switzerland (1 collection)
• Jurassic of France (1)
Total: 2 collections each including a single occurrence