Open Paleo

Titanomachya

Pérez-Moreno et al., 2025 TIE-ta-no-MAH-chee-uh

Named after the Titanomachy of Greek mythology, the battle between the Titans and the Olympian gods

72.2–66.0 million years ago Maastrichtian, Late Cretaceous
Late Cretaceous stages

Titanomachya is a genus of saltasauroid titanosaur sauropod dinosaur from the Late Cretaceous (Maastrichtian) La Colonia Formation of Chubut Province, Patagonia, Argentina. The type species is Titanomachya gimenezi, described in 2025.

Diagnosis

  1. Haemal canal approximately 25% of the total length of the chevron
  2. Humeral deltopectoral attachment with prominent development
  3. Astragalus with symmetrical articular surfaces: lateral surface for fibula and calcaneum as developed as the surface for the tibia
  4. Ratio of mediolateral expansion of the tibia to tibial facet of the astragalus nearly 75%
  5. Astragalus with a hemispherical posterior bulge and without posterior fossa; mediolateral width four times its proximodistal height

Species

Titanomachya gimenezi Pérez-Moreno et al., 2025

Type species

Named for Olga Giménez and Giménez's paleontological contributions to the study of Argentinian dinosaurs from Chubut Province.

Holotype
MPEF Pv 11547 , Museo Paleontológico "Egidio Feruglio"
Material
Partial skeleton: posterior caudal vertebra, incomplete ribs, haemal arches, left humerus, left iliac fragment, right pubic fragment, right and left femora, right and left tibiae, right and left fibulae, complete right astragalus, incomplete left astragalus
Horizon
middle La Colonia Formation, Maastrichtian, Late Cretaceous , 72.2–66.0 million years ago
Locality
Norte de Cerro Bayo, Chubut, Argentina

References

  1. Pérez-Moreno, A.; Salgado, L.; Carballido, J. L.; Otero, A.; Pol, D. (2025). A new titanosaur from the La Colonia Formation (Campanian-Maastrichtian), Chubut Province, Argentina. Historical Biology 37(4): 792-811. Informa UK Limited. doi:10.1080/08912963.2024.2332997 pérez-moreno2025a