Genus: Diamantinasaurus HOCKNULL, WHITE, TISCHLER, COOK, CALLEJA, SLOAN & ELLIOTT, 2009
Etymology: In reference ot the Diamantina River, which runs near the type locality, western Central Queensland State, Australia and Greek, sauros, "lizard."

Species: matildae HOCKNULL, WHITE, TISCHLER, COOK, CALLEJA, SLOAN & ELLIOTT, 2009
Etymology: For Matilda, in reference to "Walzing Matilida", and one of Australia's National songs, written by Banjo Patterson in Winto ("Matilda County") in 1895.

Holotype: AODF 603

Locality: AODL 85, "Matilda Site", Elderslie Station, approximately 60 km north-west of Winton, western Central Queensland State, Australia.

Horizon: Winton Formation.

Biostratigraphy:

Age: Latest Albian Stage, Middle Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material: Right scapula, right and left humeri, right ulna, near complete right metacarpus including metacarpals II-V, phalanges and manus ungual, left metacarpal I, dorsal ribs, and fragmentary gastralia, left sternal plate, left ilium and isolated sacral processes, right and left pubes and ischia, right femur, tibia, fibula and astragalus.

Referred material:

POROPAT, MANNION, UPCHURCH, HOCKNULL, KEAR, KUNDRAT, TISCHLER, SLOAN, SINAPIUS, ELLIOTT, & ELLIOTT, 2016

Locality: AODL 127, "Elliot Site", Belmont Station, Winton, western Central Queensland State, Australia.

Horizon: Winton Formation.

Biostratigraphy:

Age: Cenomanian-early Turonian Stage, Middle Gallic Subepoch, Lower Gulf Epoch, Middle Cretaceous.

Material:

AODF 836: Left squamosal, nearly complete braincase, right surangular, skull fragments, atlas-axis, 5 post-axial cervical veretbrae, 3 dorsal vertebrae, partial sacrum, dorsal ribs, right scapula, both iliac preacetabular processes, paired pubes and ischia, assocaited fragments.

 

RIGBY, POROPAT, MANNION, PENTLAND, SLOAN, RUMBOLD, WEBSTER & ELLIOTT, 2022

Locality: AODL -122, "Oliver Site", Elderslie Station, 60 km west-northwest of Winton, western Central Queensland State, Australia.

Horizon: Winton Formation.

Biostratigraphy:

Age: Cenomanian-early Turonian Stage, Middle Gallic Subepoch, Lower Gulf Epoch, Middle Cretaceous.

Material:

AODF 663 (Oliver): 1 cervical rib, 2 dorsal vertebral centra, 3 dorsal neural arches, several dorsal ribs, left scapula, right humerus, right manual phalanx I-2, right femur and associated fragments.