[D] Pellegrinisaurus powelli [sG] [T]
Cretaceous Late Campanian Maastrichtian
Saurischia Sauropodomorpha Sauropoda Titanosauria
Rio Colorado Formation or Allen Formation, Lago Pellegrini, Northwestern Patagonia, Argentina
Genus - Typespecies
The specimen (four dorsals, twenty six incomplete caudals, and an incomplete right femur) has previously been referred to as cf. Epachthosaurus_ sp. Salgado considers it a titanosaur more derived than Epachthosaurus or Andesaurus, but is not certain of its affinities beyond that.
Diagnosed by caudal dorsal centra compressed dorsventrally, so that their transverse diameters are twice their dorsoventral heights; mid-distal and distal caudal neural spines elongate axially, depressed dorsally, and higer at the cranial end than the distal end.
Salgado also notes that Pelligrinisaurus and its sympatric fauna (Titanosaurus and Abelisaurus) may represent upland faunas from the same interval where the titanosaurid Aeolosaurus and various hadrosaurids inhabited the coastal lowlands.