Eoneustes (meaning "dawn swimmer") is an extinct genus of metriorhynchoid crocodyliform from Middle Jurassic (late Bajocian to early Bathonian stage) deposits of France. Eoneustes was a carnivore that lived in the oceans and spent much, if not all, its life out at sea.
Discovery and species E. bathonicus:Mercier J. 1933. Contribution l’étude des Métriorhynchidés (crocodiliens). Annales de Paléontologie 22: 99-119. Western Europe (France) of the Middle Jurassic (early Bathonian). It is known from holotype from Calvados of Normandy, that was lost during the Second World War. E. gaudryi:Collot L. 1905. Reptile jurassique (Teleidosaurus gaudryi) trouvé à St-Seine-l'Abbaye (Côte-d'Or). Memoire Acad. Sci. Arts et Belles-Lettres 10: 41-45. Western Europe (France) of the Middle Jurassic (late Bajocian to early Bathonian). It is known from the holotype NHM R.3353, a partial skull from Côte d’Or, Burgundy and the referred specimen from which housed at Université Claude Bernard Lyon I, F.S.L. 330210, another partial skull from Alpes-de-Haute-Provence, France.
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