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Pre-Nectarian basins arranged by group number (1=oldest, 9=youngest). Basins that are in parentheses have not been definitively confirmed. Numbers following the basin name are estimates of its main rim diameter

Group 1	Group 2	Group 3	Group 4	Group 5	Group 6	Group 7	Group 8	Group 9
South Pole-Aitken 2500	(Al-Khwarizmi/King) 590	Lomonosov-Fleming 520	Keeler-Heaviside 780	Smythii 840	Lorentz 360	Birkhoff 330	Freundlich-Sharonov 600	Apollo 505
	(Pingré-Hausen) 300	Nubium 690	Poincare 340	Coulomb-Sarton 530		Planck 325		Grimaldi 430
	(Werner-Airy) 500	(Mutus-Vlacq) 700	Ingenii 650			Schiller-Zucchius 325
	(Balmer-Kapteyn) 550	Tranquillitatis 800				(Amundsen-Ganswindt) 355
	(Flamsteed-Billy) 570	Australe 880
	(Marginis) 580	Fecunditatis 990
	(Insularum) 600
	(Grissom-White) 600
	Tsiolkovskiy-Stark) 700

Pre-Nectarian basins

Group	Name	Diameter (km)
9	Apollo	505
	Grimald	430
8	Freundlich-Sharonov	600
7	Birkhoff	330
	Planck	325
	Schiller-Zucchius	325
	(Amundsen-Ganswindt)	355
6	Lorentz	360
5	Smythii	840
	Coulomb-Sarton	530
4	Keeler-Heaviside	780
	Poincare	340
	Ingenii	650
3	Lomonosov-Fleming	520
	Nubium	690
	(Mutus-Vlacq)	700
	Tranquillitatis	800
	Australe	880
	Fecunditatis	990
2	(Al-Khwarizmi/King)	590
	(Pingré-Hausen)	300
	(Werner-Airy)	500
	(Balmer-Kapteyn)	550
	(Flamsteed-Billy)	570
	(Marginis)	580
	(Insularum)	600
	(Grissom-White)	600
	Tsiolkovskiy-Stark)	700
1	South Pole-Aitken	2500