A. parvidens is the type and only species of Aristonectes.
Aristonectes parvidens
Species
A. parvidens
Author
Cabrera, 1941
Classification
Sauropterygia
Eosauropterygia
Eusauropterygia
Pistosauria
Plesiosauria
Plesiosauroidea
Elasmosauridae
Aristonectidae
Aristonectes
Age
Maastrichtian, Late Cretaceous
Type location
Chubut River (42, 40' S-70, 00' W), northwest Chubut Province, Patagonia, Argentina
Geological formation
Paso del Sapo Formation, Fefipan Member
Type specimen
MLP 40-XI-14-6; part of a skull and mandible, atlas-axis complex and 21 cervical vertebrae, 8 caudal vertebrae and an incomplete limb
Referred material
TTU P 9219, incomplete skull and mandible plus associated cervical material; SGO-PV-957, posterior cranium and incomplete mandible