Genus: Eoneustes YOUNG, BRUSATTE, RUTA & DE ANDRADE, 2010
Etymology: Ancient Greek, eos, "dawn" and ancient Greek, -neustes, "swimmer"; refering to the basal position of this genus in the phylogeny.

Species: gaudryi (COLLOT, 1906) YOUNG, BRUSATTE, RUTA & DE ANDRADE, 2010
Etymology: 'Gaudry's Dawn swimmer'.
= Teleidosaurus gaudryi COLLOT, 1906
= Metriorhynchus gaudryi (COLLOT, 1906) MERCIER, 1933

Holotype: NHM R.3353

Locality: Saint-Seine-l'Abbaye, Cote d'Or, Burgundy Department, France.

Horizon:

Biostratigraphy:

Age: Upper Bajocian-Lower Bathonian Stage, Middle Dogger Epoch, Early Jurassic.

Material: Incomplete skull.

Referred material:

BUFFETAUT & THIERRY, 1977

Locality: Saint-Seine l'Abbaye, Cote-d'Or, Burgundy Department, France.

Horizon: Yellowish-white limestone.

Biostratigraphy:

Age: Lower Bathonian Stage, Middle Dogger Epoch, Lower Middle Jurassic.

Material:

Number: Not given: Skull missing anterior and posterior tips.

 

YOUNG, BRUSATTE, RUTA & DE ANDRADE, 2010

Locality: 'La Clue de Chasteuil', Alpes-de-Haute-Province, France.

Horizon:

Biostratigraphy: parkinsoni ammonite zone.

Age: Upper Bajocien Stage, Middle Dogger Epoch, Middle Jurassic.

Material:

Universite Claude bernard Lyon I, F.S.L. 330210: Skull lackign occiput and tip of the rostrum.

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Species: bathonicus (MERCIER, 1933) YOUNG, BRUSATTE, RUTA & DE ANDRADE, 2010
Etymology: 'Dawn swimmer from the Bathonian'.
= Metriorhynchus bathonicus MERCIER, 1933
= Teleidosaurus bathonicus (MERCIER, 1933) BUFFETAUT & THIERRY, 1977

Holotype: Number not given. (Note: Lost during World War II).

Locality: Port-en-Bessin, Calvados Department, Normandy, France.

Horizon:

Biostratigraphy:

Age: Lower Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: Skull missing the lower anterior portion.
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