Genus MAIASAURA
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass . . . . . . . . . . Infraclass / Division. . . . . . . . Subdivision / Infradivision . . . Superorder / Order. . . . . . . . Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Reptilia / Diapsida Archosauromorpha / Archosauria Avemetatarsalia / Ornithodira Dinosauria / Ornithischia Ornithopoda / Iguanodontia Iguanodontoidea / Hadrosauridae Hadrosaurinae / Maiasaura
Age: Distribution:	Late Cretaceous North America
Depicted on: Angola, 1998 (120000 K.) Chad, 2021 (sheet margin) Grenada, 1997 (M.S. 2) Grenada - Grenadines, 1999 (position 1 of sheet 2, as 'duckbill') Guinea, 1999 (position 6 of sheet) Guinea-Bissau, 2021 (position 3 of sheet) Guinea-Bissau, 2023 (M.S. label) Guinea-Bissau, 2024 (M.S. 1 margin) Korea (North), 2006 (sheet 2 margin, probably) Liberia, 2023 (M.S. 1 margin) Maldives, 1994 (position 9 of sheet 1) Maldives, 2019 (position 3 of sheet) Sao Tome e Principe, 2021 (position 3 of sheet) Sierra Leone, 1998 (position 5 of sheet) Sweden, 2016 (inland letter rate, issued in stamp booklet) Togo, 2017 (position 4 of sheet) Togo, 2019 (position 3 of sheet)