Arenysaurus

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Arenysaurus Temporal range: Maastrichtian ~66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Skull fossils
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	†Ornithischia
Clade:	†Neornithischia
Clade:	†Ornithopoda
Family:	†Hadrosauridae
Subfamily:	†Lambeosaurinae
Tribe:	†Arenysaurini
Genus:	†Arenysaurus Pereda-Suberbiola et al., 2009
Type species
†Arenysaurus ardevoli Pereda-Suberbiola et al., 2009

Arenysaurus is a genus of hadrosaurid dinosaur from the Late Cretaceous (66 million years ago), being one of the last non-avian dinosaurs and it went extinct during the Cretaceous–Paleogene extinction event. It is known from a partial skull and skeleton found in the late Maastrichtian-age Tremp Formation of the Pyrenees Mountains in Spain. The type species is A. ardevoli, described in 2009 by Pereda-Suberbiola et al., a group of researchers from Spain. The genus name refers to Arén, where it was found, and the specific epithet honours geologist Lluís Ardèvol.^[1]

Arenysaurus was a lambeosaurine, a member of the hadrosaurid subfamily with hollow and decorative cranial crests.^[1] It is one of the most complete and best dated ever found in the Late Cretaceous period.^[2]