Add it to the list:

Every Night of the Living Dead timeline:

Romero timeline: • Night of the Living Dead (1968, with colorizations by Hal Roach Studios in 1986, Anchor Bay Entertainment in 1997, Legend Films in 2004, and Legend Films again in 2009/2010, plus an alternate cut 30th Anniversary Edition in 1999, a 2010 Reanimated collab cut, and the 1999 parody redub NOTDOT) • Dawn of the Dead (1978) • Day of the Dead (1985) • Land of the Dead (2005) • Diary of the Dead (2007) • Survival of the Dead (2009)

Russo timeline: • Night of the Living Dead: 30th Anniversary Edition (1999) • Children of the Living Dead (2001)

Remake timeline: • Night of the Living Dead (1990)

Dawn of the remake timeline: • Dawn of the Dead (2004)

Day of the remake timeline: • Day of the Dead (2008)

Bloodline of the remake timeline: • Day of the Dead: Bloodline (2018)

3D timeline: • Night of the Living Dead 3D (2006) • Night of the Living Dead 3D: Re-Animation (2012)

Resurrection timeline: • Night of the Living Dead: Resurrection (2012)

Darkest Dawn timeline: • Night of the Living Dead: Darkest Dawn, aka Origins, aka Origins 3D (2015)

Contagium timeline: • Night of the Living Dead (1968) • Dawn of the Dead (1978) • Day of the Dead (1985) • Day of the Dead 2: Contagium

Return of the Living Dead timeline: • Night of the Living Dead (1968) • Return of the Living Dead (1985) • Return of the Living Dead Part II (1988) • Return of the Living Dead 3 (1993) • Return of the Living Dead: Necropolis (2005) • Return of the Living Dead: Rave to the Grave (2005)

SyFy timeline: • Day of the Dead 10 episode show

Zombi timeline: • Night of the Living Dead (1968) • Dawn of the Dead, aka Zombi (1978) • Zombi 2, aka Zombie Flesh Eaters, aka Zombie (1979) • Zombi 3, aka Zombie Flesh Eaters 2 (1988) • Zombie 4: After Death, aka Zombie Flesheaters 3 (1989) • Zombi 5: Killing Birds, aka Zombie Flesheaters 4 (1988)

Alt. Zombi timeline: • Night of the Living Dead (1968) • Dawn of the Dead, aka Zombi (1978) • Zombi 2, aka Zombie Flesh Eaters, aka Zombie (1979) • Zombie 3: Return of the Zombies, aka The Hanging Woman (1973) • Zombie 4: A Virgin Among the Living Dead (1973 and an alternate 1981 cut) • Revenge in the House of Usher: Zombie 5 (1982) • Zombie 6: Monster Hunter, aka Absurd (1981) • Zombie 7, aka Antropophagus, aka The Grim Reaper (1980)

Alt. alt. Zombis: • Let Sleeping Corpses Lie, aka Zombi 3 (1974) • Zombie Holocaust, aka Doctor Butcher, M. D., aka Zombi 3 (1980) • Nightmare City, aka Zombi 3 (1980) • Burial Ground: The Night of Terror, aka Zombi 3 (1981) • Panic, aka Bakterion, aka Zombi 4 (1982) • Pulgasari, aka Zombi 34: The Communist Bull-Monster (1985) • Zombie '90: Extreme Pestilence, aka Zombie 2001: Battle Royale, aka Zombi 7 (1991) • Zombie 1, aka Zombi 1 (1995 short film on the Nether Horror Collection)

Animated • Night of the Animated Dead