Genus: Dreadnoughtus LACOVARA, LAMANNA, IBIRICU, POOLE, SCHROETER,
ULLMANN, VOEGELE, BOLES, CARTER, FOWLER, EGERTON, MOYER, COUGHENOUR, SCHEIN,
HARRIS, MARTINEZ, & NOVAS,
Etymology: Dreadnought (Old English), fearing nothing; genus name alludes to the gigantic body size of the taxon (which presumably rendered healthy adult individuals nearly impervious to attack) and the predominate battleships of the early 20th century (two of which ARA [Armada de la Republica Argentina] Rivadavia and ARA Moreno, where part of the Argentinean navy).
Species: schrani LACOVARA, LAMANNA, IBIRICU, POOLE, SCHROETER, ULLMANN,
CARTER, FOWLER, EGERTON, MOYER, COUGHENOUR, SCHEIN, HARRIS, MARTINEZ, & NOVAS,
Etymology: In honorus of the American entrepreneur Adam Schran for his support of this research.
Holotype: MPM-PV 1156
Locality: Cerro Fortaleza, east bank of the Rio La Leona, Santa Cruz Province, south-western Patagonia, Argentina.
Horizon: Cerro Fortaleza Fromation.
Age: Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Maxilla fragment, tooth, posterior cervical vertebra, cervical ribs, multiple dorsal vertebrae and ribs, the sacrum, 32 caudal vertebrae and 18 haemal arches (including an articulated sequence of 17 anterior and middle caudal vertebrae and thier corresponding haemal arches), the left pectoral girdle and forelimb minus the manus, both sternal plates, all pelvic elements, the left hind limb lacking the pes, and the right tibia, metatarsals I and II, and pedal ungal I.
Paratype: MPM-PV 3546: A partially articulated skeleton of a slightly smaller individual; a partial anterior cervical vertebra, multiple dorsal vertebrae and ribs, the sacrum, 7 caudal vertebrae and 5 haemal arches, all pelvic elemtns, and the left femur.
Note: Soft tissue preservation in the left humerus (MPM-PV-1156-49) SCHROETER, ULLMANN, MACAULEY, ASH, ZHENG, SCHWEITZER & LACOVARA, 2022.