Oligosaurus

Oligosaurus is a genus of iguanodont dinosaurs from the Late Cretaceous Grünbach Formation of Austria.
Discovery and species.
In 1859 coal mine administrator Pawlowitsch notified the University of Vienna that some fossils had been found in the "Gute Hoffnung" mine at Muthmannsdorf in Austria. A team headed by geologists Eduard Suess and Ferdinand Stoliczka subsequently uncovered numerous bones of several species, among them those of an ornithopod dinosaur. Stored at the university museum, the finds remained undescribed until they were studied by Emanuel Bunzel from 1870 onwards. Bunzel in 1871 referred the scapula PIUW 3518 along with a humerus and metapodial (identified by him as a femoral fragment) to "Lacerta" sp. Seeley (1881) erected "Oligosaurus" for the scapula and considered the metapodial and humerus to be conspecific, while referring the paralectotype caudal vertebrae of "Mochlodon suessi" to the taxon. The generic name is derived from Greek "oligos", "few", and "sauros", "lizard". Norman and Weishampel (1990) and Norman (2004) listed "Oligosaurus", along with "Ornithomerus" and "Mochlodon", as a synonym of "Rhabdodon". However, Sachs and Hornung (2006) assigned one of the specimens of "Oligosaurus" (the holotype scapula) to "Zalmoxes" sp. along with the "Mochlodon suessi" and "Ornithomerus" holotypes.
The type specimen PIUW 3518 was found in the Grünbach Formation of the Gosau Group dating from the early Campanian, about 80 million years old.