Eoneustes

Eoneustes Temporal range: Bajocian - Bathonian, 168.5–167 Ma PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Superorder:	Crocodylomorpha
Suborder:	†Thalattosuchia
Superfamily:	†Metriorhynchoidea
Genus:	†Eoneustes Young et al., 2010
Species
E. bathonicus (Mercier, 1933 [originally Metriorhynchus]) E. gaudryi (Collot, 1905 [originally Teleidosaurus]) (type)

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.^[1]

Discovery and species

• E. bathonicus:^[2] Western Europe (France) of the Middle Jurassic (early Bathonian). It is known from holotype from Calvados of Normandy, that lost during the Second World War.^[3]
• E. gaudryi:^[4] 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.^[3]

References

1. Mark T. Young and Marco Brandalise de Andrade (2009). "What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany". Zoological Journal of the Linnean Society 157 (3): 551–585. doi:10.1111/j.1096-3642.2009.00536.x.
2. Mercier J. 1933. Contribution l’étude des Métriorhynchidés (crocodiliens). Annales de Paléontologie 22: 99-119.
3. Mark T. Young, Stephen L. Brusatte, Marcello Ruta and Marco Brandalise de Andrade (2010). "The evolution of Metriorhynchoidea (Mesoeucrocodylia, Thalattosuchia): an integrated approach using geometrics morphometrics, analysis of disparity and biomechanics". Zoological Journal of the Linnean Society 158 (4): 801–859. doi:10.1111/j.1096-3642.2009.00571.x.
4. 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.