Genus: Lavocatisaurus CANUDO, CARBALLIDO, GARRIDO, & SALGADO, 2018
Etymology: In honor of the French researcher Rene Lavocat (1909-2007), who described Rebbachisaurus, the first known representative of Rebbachisauridae, and Greek, sauros, 'lizard'.

Species: agrioensis CANUDO, CARBALLIDO, GARRIDO, & SALGADO, 2018
Etymology: In reference to the locality of Agrio del Medio, Neuquen Province, Patagonia, Argentina from which the new species was found.

Holotype: MOZ-Pv1232

Locality: Agrio del Medio Site, Neuquen Province, Patagonia, Argentina.

Horizon: Pichi Neuquen Member, Rayoso Formation.

Biostratigraphy:

Age: Aptian-Lower Albian Stage, Gallic Subepoch, Late Early Cretaceous Epoch, Early Cretaceous.

Material: Partially articulated specimen, dentaries, left surangular, premaxillae and maxillae, left jugal, right squamosal, quadrates, 23 isolated teeth and two series of 8 and 9 maxillary teeth, hyoid bone, 11 cervical vertebrae (including atlas and axis), 28 caudal vertebrae, cervical ribs, 2 dorsal ribs, humerus, fragment of ?radius.

Paratypes:

MOZ-Pv 1248: Posterior cervical centrum.

MOZ-Pv 1249: Cervical neural arch.

MOZ-Pv 1251: Dorsal neural arch.

MOZ-Pv 1252, 1253, 1254: Anterior caudal centra.

MOZ-Pv 1255: Scapula.

MOZ-Pv 1267: Left radius.

MOZ-Pv 1256: Left ulna.

MOZ-Pv 1257: Right metatarsals I.

MOZ-Pv 1258: ?Metatarsal V.

MOZ-Pv 1233, 1250: Cervical centra.

MOZ-Pv 1236, 1237: Incomplete cervical neural arches.

MOZ-Pv 1238, 1239: Fragmentary neural archs.

MOZ-Pv 1240: Dorsal centrum.

MOZ-Pv 1241: Rib fragments.

MOZ-Pv 1242: Haemal arch.

MOZ-Pv 1243: Right ulna.

MOZ-Pv 1244: Left tibia.

MOZ-Pv 1245: Left fibula.

MOZ-Pv 1246: End of metatarsal.

MOZ-Pv 1247: Indetermiante flat fragment.