In 2010, the type species Paludititan nalatzensis was named and described by Zoltán Csiki, Vlad Codrea, Cătălin Jipa-Murzea and Pascal Godefroit.

[1] The holotype, UBB NVM1, was found in the Hațeg Basin, in a silty mudstone layer of the Sânpetru Formation, dating from the early Maastrichtian.

[1] The describing authors of Paludititan considered the possibility that the skeleton was a specimen of Magyarosaurus dacus, a coeval titanosaurian sauropod sharing the same habitat.

[4] Malawisaurus Paludititan Lohuecotitan Epachthosaurus Alamosaurus Opisthocoelicaudia Neuquensaurus Rocasaurus Saltasaurus Lirainosaurus Atsinganosaurus Ampelosaurus Bonatitan Rapetosaurus Nemegtosaurus Gondwanatitan Aeolosaurus Rinconsaurus Muyelensaurus Bonitasaura Mendozasaurus Futalognkosaurus In the same year, Gorscak & O'Connor (2019) in their description of Mnyamawamtuka recovered Paludititan as a saltasaurid.

[5] Karongasaurus Argentinosaurus Andesaurus Ligabuesaurus Jiangshanosaurus Angolatitan Malarguesaurus Chubutisaurus Wintonotitan Tastavinsaurus Malawisaurus Mnyamawamtuka Tapuiasaurus Normanniasaurus Rinconsaurus Isisaurus Rapetosaurus Muyelensaurus Bonitasaura Gondwanatitan Panamericansaurus Overosaurus Shingopana Trigonosaurus Aeolosaurus Argyrosaurus Diamantinasaurus Patagotitan Paralititan Maxakalisaurus Neuquensaurus Saltasaurus Epachthosaurus Futalognkosaurus Mendozasaurus Atsinganosaurus Notocolossus Rukwatitan Lohuecotitan Nemegtosaurus Lirainosaurus Opisthocoelicaudia Ampelosaurus Mansourasaurus Paludititan Pellegrinisaurus Dreadnoughtus Alamosaurus Baurutitan Paludititan lived on the Cretaceous Hațeg Island with a diverse assemblage of animals, including other island dwarfs such as its relative Magyarosaurus,[6] the hadrosaurid Telmatosaurus and the iguanodontian Zalmoxes.

Other endemic dinosaurs include the nodosaurid Struthiosaurus, several small, fragmentary maniraptorans Bradycneme, Elopteryx, Heptasteornis,[7] and the avialan Balaur.