Genus TYLOSAURUS
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Reptilia / Diapsida / Lepidosauromorpha n.a. / Lepidosauria / Squamata Lacertilia / Diploglossa Varanoidea / Mosasauridae n.a. / Tylosaurus
Age: Distribution:	Late Cretaceous North America
Depicted on: Canada, 2015 (position 5 and stamp booklet) Central African Republic, 1993 (M.S.) Central African Republic, 2014 (position 2 of sheet, M.S. margin) Central African Republic, 2019 (position 2 of sheet, M.S. margin) Central African Republic, 2023 (sheet margin) Chad, 2023 (M.S.) Guinea, 1987 (200 Fr., set in sheet, Tylosaurus M.S. and margin) Guinea, 2007 (position 3 of sheet, M.S.) Guinea, 2009 (Tylosaurus M.S. and M.S. margin, 200 Fr., overprinted 15000 FG.) Guinea, 2017 (position 3 of sheet) Guinea, 2019 (position 3 of sheet, M.S. margin) Guinea, 2020 (position 1 of sheet) Guinee-Bissau, 2014 (position 4 of sheet, M.S. margin) Guyana, 1993 (800 $. silver stamp in M.S.) Guyana, 1995 (1993 800 $. silver M.S. overprinted) Korea (North), 2004 (sheet margin) Laos, 1988 (M.S. margin) Liberia, 2021 (position 3 of sheet) Maldives, 2014 (position 1 of sheet) Mozambique, 2018 (position 4 of sheet) Mozambique, 2021 (position 3 of sheet) Nicaragua, 1987 (40 C.) Niger, 2000 (position 5 of sheet 4) Niger, 2015 (position 2 of sheet) Niger, 2016 (M.S. margin) Qu'aiti state of Hadhramaut, 1968 (10 f.) Saint Vincent & the Grenadines, 1994 (position 5 of sheet 1) Sao Tome e Principe, 2009 (position 3 of sheet, M.S. margin) Sierra Leone, 2016 (position 2 of sheet) Sierra Leone, 2020 (15800 Le., position 1 of sheet, M.S., M.S. margin) Sierra Leone, 2020 (M.S.) Solomon Islands, 2013 (position 2 of sheet) Togo, 2016 (M.S. margin)