Kundurosaurus is an extinct genus of saurolophine hadrosaurid dinosaur known from the Latest Cretaceous (probably Late Maastrichtian stage) of Amur Region, Far Eastern Russia. It contains a single species, Kundurosaurus nagornyi. Description Kundurosaurus was a medium-sized hadrosaur, measuring long and weighing . It is a saurolophine diagnosed by four autapomorphies, unique derived traits. It has a prominent and thick ridge on the lateral side of the nasal that borders caudally the circumnasal depression and invades the caudal plate of the nasal. Its caudal buttress of the proximal head of the scapula is oriented quite laterally, parallel to the pseudoacromial process. The preacetabular process of the ilium is straight and only moderately deflected ventrally by an angle of 160°. It does not reach the level of the plane formed by the bases of the iliac and pubic peduncles. Finally, with Kundurosaurus the axis of the postacetabular process of the ilium is strongly twisted along its length, so that its lateral side progressively faces dorsolaterally. Discovery Kundurosaurus is known from holotype AENM 2/921, a partial, disarticulated skull, including a nearly complete braincase (AENM 2/921 1-2), two quadrates (3-4), squamosal (5), postorbital (6), frontal (7) and parietal (8) bones. The referred specimens are AENM 2/45-46, two jugals; AENM 2/83-84, 2/86, maxillae; AENM 2/57-58, nasals; AENM 2/48, postorbital; AENM 2/19, quadrate; AENM 2/121, 2/928 partial braincases; AENM 2/846, 2/902, dentaries; AENM 2/906, scapula; AENM 2/913, sternal; AENM 2/117, 2/903, 2/907-908, humeri; AENM 2/905, ulna; AENM 2/904, radius; AENM 2/922, nearly complete pelvic girdle and associated sacral elements. These were found at the same level as the holotype, but may belong to other individuals. All specimens are housed in the Amur Natural History Museum of the Institute of Geology and Nature Management, Russia. Kundurosaurus was first described and named by Pascal Godefroit, Yuri L. Bolotsky and Pascaline Lauters in 2012. The type species is Kundurosaurus nagornyi. The generic name is derived from Kundur, the type and only known locality, and sauros, "lizard" in Ancient Greek. The specific name, nagornyi, honors V.A. Nagorny from the Far Eastern Institute of Mineral Resources, for discovering the Kundur locality in 1990. All Kundurosaurus specimens were collected in the Kundur locality. The site belongs to the Wodehouseia spinata – Aquilapollenites subtilis palynozone, dating to the Maastrichtian stage, probably the Late Maastrichtian, of the Late Cretaceous period, about 67-66 million years ago. The Kundur site was discovered by Vladimir A. Nagorny