Open Paleo

Narambuenatitan

Filippi et al., 2011 na-ram-bweh-na-tie-tuhn

Refers to Puesto Narambuena, the locality in northern Patagonia, Argentina, where the fossil was found, combined with Greek Titan (a giant)

83.6–72.2 million years ago Campanian, Late Cretaceous
Late Cretaceous stages

Narambuenatitan is a genus of lithostrotian titanosaur sauropod from late Cretaceous (lower-middle Campanian stage) deposits of northern Patagonia of Argentina. Narambuenatitan is known from the holotype MAU-Pv-N-425, an incomplete skeleton. It was collected in 2005 and 2006 from the Anacleto Formation (Neuquén Group) in northern Patagonia. It was first named by Leonardo S. Filippi, Rodolfo A. García and Alberto C. Garrido in 2011 and the type species Narambuenatitan palomoi. The generic name refers to Puesto Narambuena. The specific name honors the discoverer, Salvador Palomo.

Diagnosis

  1. Great participation of frontal to rostral border of supratemporal fossa
  2. Absence of ornamentation on supraorbital or lateral borders of frontal
  3. Lamina joining each parietal crest with rostral surface of supratemporal
  4. Pleurocoel dorsal border defined by prominent convex bony edge in posterior dorsal vertebrae
  5. Distal enlargement of prespinal lamina in posterior dorsal vertebrae with laterally enlarged neural spine
  6. Kidney-shaped prezygapophysis in posterior dorsal vertebrae
  7. Numerous pneumatic cavities posterior to centroparapophyseal and centrodiapophyseal laminae in posterior dorsal vertebrae
  8. Middle-anterior caudal vertebrae with anterodorsal border of neural spine anteriorly inclined
  9. Middle caudal vertebra with slender prezygapophysis and neural arch

Species

Narambuenatitan palomoi Filippi et al., 2011

Type species

Named for Salvador Palomo, the discoverer of the holotype specimen.

Holotype
MAU-Pv-N-425 , Museo Argentino Urquiza, Rincón de los Sauces
Material
Partial skeleton: premaxilla, maxilla, braincase, quadrates, cervical and dorsal vertebrae, caudal vertebrae, ribs, sternal plate, coracoid, humerus, ulna, pubes, ilium, ischium, femur
Horizon
lower Anacleto Formation, Campanian, Late Cretaceous , 83.6–72.2 million years ago
Locality
Puesto Narambuena, Neuquén, Argentina

References

  1. Filippi, L. S.; García, R. A.; Garrido, A. C. (2011). A New Titanosaur Sauropod Dinosaur from the Upper Cretaceous of North Patagonia, Argentina. Acta Palaeontologica Polonica 56(3): 505-520. Polska Akademia Nauk Instytut Paleobiologii (Institute of Paleobiology, Polish Academy of Sciences). doi:10.4202/app.2010.0019 filippi2011b
  2. Jones, B. (2026). The Princeton Encyclopedia of Dinosaurs: Sauropods. Princeton University Press.

    Source of the body length, mass, and hip height estimates.

    jones2026b