Locality: About 5 km west from Villa El Chochn, western shore of the Ezequiel Ramos Mexia Reservoir, Neuquen Province, Argentina.

Horizon: Middle upper part of the Candeleros Formation, Rio Limay Subgroup, Neuquen Group.

Biostratigraphy:

Age: Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Middle Cretaceous.

Material:

MMCh-Pv 259: Several cincomplete, partially articulated postcranial elements.