Genus: Arrudatitan SILVA Jr., MARTINELLI, IORI, MARINHO, HECHENLEITNER & LANGER, 2021
Etymology: In honor of the late Prof. Antonio de Celso Arruda Campos, fossil collector, populariser of science, and first curator of the MPMA in Monte Alto.

Species: maximus (SANTUCCI & ARRUDA-CAMPOS, 2011) SILVA Jr., MARTINELLI, IORI, MARINHO, HECHENLEITNER & LANGER, 2021 (Type)
= Aeolosaurus maximus SANTUCCI & ARRUDA-CAMPOS, 2011
Etymology: In reference to Rio Negro Province, Argentina.

Holotype: MPMA 12-0001-97

Locality: 'Santa Irene' farm, between Monte Alto and Candido, Sao Paulo State, Brazil.

Horizon: Angostura Colorada Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material: 2 incomplete posterior cervical vertebrae, 7 incomplete cervical ribs, a fragmentary anterior trunk centrum, a probable fragment of a middle trunk vertebra, a fragmentary posterior trunk vertebra, several incomplete diapophysis of trunk vertebrae, 12 incomplete trunk ribs, 6 articulated anterior caudal vertebrae, a mid-caudal centrum, 2 posterior caudal vertebrae, 6 anterior, 1 mid, and 1 posterior haemal arch, a probable fragmentary scapula, an incomplete right humerus, a probably fragmentary left humerus, a probably inocomplete radius, incomplete right femur, left femur, left ischium, and severial unidentified fragments.