!!Original film:
* AuthorExistenceFailure: Barely averted with Creator/JudithBarsi, the young actress who played Ducky in the original film (and she also played Anne-Marie in ''WesternAnimation/AllDogsGoToHeaven''), who had her voicework for both films completed before she [[PaterFamilicide was murdered along with her mother by her father]] before either film could be released.
* CreatorBacklash: While he by no means dislikes the film, Don Bluth credits it with kickstarting his weaker output, as it was his first major exposure to ExecutiveMeddling.
* DuelingMovies: With ''Disney/OliverAndCompany''. Just like [[WesternAnimation/AnAmericanTail Bluth's previous film]], this one won, and became the highest grossing animated movie of all time... [[Disney/TheLittleMermaid until 1989 that is.]] [[note]]However, if you only count it's [[http://www.boxofficemojo.com/movies/?id=landbeforetime.htm total earnings]] ''domestically'', then ''[[http://www.boxofficemojo.com/movies/?id=oliverandcompany.htm Oliver and Company]]'' just barely trumped it. [[/note]]
* ExecutiveMeddling: The film was originally DarkerAndEdgier, but many scenes were deleted because they were [[AnimationAgeGhetto "too scary for kids"]]. This explains the film's very short running time.
** It should be noted that for older viewers, it would have simply made the film better. Which is why fans are trying desperately to track down these scenes.
* FanNickname: To avoid confusion between this character and sharpteeth as a whole, fans often refer to the film's antagonist as 'The Original Sharptooth' or simply '''The'' Sharptooth'.
* KeepCirculatingTheTapes: Again, nineteen full minutes of completed animation was cut at the last minute after it was deemed too intense for younger audiences. Some have claimed that bits and pieces of this footage made it into broadcast versions and theatrical trailers. Don Bluth himself claims to have a personal copy of the film reel with the whole thing, though no word on whether or not it will ever see the light of day.
* MissingEpisode: The eleven minutes of cut footage that are either languishing in a vault somewhere or have been destroyed.
* MoneyDearBoy: In his book "The Art Of Animation," Don Bluth admitted that the film's massive financial success can partially be attributed to the 19-minute cut-out.
* RecycledSoundtrack: The instrumental "If We Hold On Together" score was re-used in the live action film ''Lorenzo's Oil'' and as the RealSongThemeTune for a Japanese TV show.
* ScienceMarchesOn: A very interesting example; studies done long after the film's release revealed that ceratopsian dinosaurs may have been opportunistic omnivores; in other words, ''Triceratops'' like Cera may well have been willing to eat ''meat'' in real life as well as plants!
** Then again, she ''did'' look at a fly while smacking her lips then seemed to try to bite it in the original film...
* WhatCouldHaveBeen: A total of nineteen minutes of footage was cut due to ExecutiveMeddling, though Don admitted removing the more horrific scenes contributed to the film's success. Additionally, the film's second half was not as Don originally intended. In the original version, Littlefoot finds the Great Valley after he goes off alone and the others go with Cera. He realizes that he has to go find the others because they won't find it on their own, and goes back after them, finding them in the volcano. The Sharptooth scene then happens and he leads them to the valley. This can be detected in the final film. In the scene where Littlefoot is telling his mother he'll never find the Great Valley because it's too hard, the rock they pushed onto Sharptooth is still there in the foreground; and the scene where he looks over the Great Valley shows him standing alone and is closely followed by a shot of Littlefoot and the others sliding to a stop with Petrie perched on his head.
** There is also a deleted scene where the group finds an oasis, but the two groups of dinosaurs already there get discriminatory and say that only Ducky can drink.
*** These elements still appear in the children's book released with the film.
** The scene where Sharptooth lands on the back of Littlefoot's mother was originally fully visible, but it was changed to shadow. The scene where Sharptooth is pushed under by the big rock had a scene where Sharptooth was seen looking up to the water, but it was also deemed too scary. Fans have gone out of their way to find all these scenes. [[TimeWillTell Hopefully they'll be found in the future...]]
** Old Rooter didn't appear in the original script, but was added to soften the blow of the death of Littlefoot's mother.
** The original film trailer has another apparently deleted bit from the final scene with Littlefoot saying "now we'll always be together!".
** Reportedly the full, uncut version has aired in several foreign countries.

!!Sequels:
* ActorAllusion: Rinkus, Pterano's BumblingSidekick with the cockney accent, is pink. [[Creator/RobPaulsen Guess who]] [[WesternAnimation/PinkyAndTheBrain voices him]]. Same goes for Strut, the BumblingSidekick to Ozzy, who also has a cockney accent.
* CelebrityVoiceActor: Plenty
** Kenneth Mars plays Grandpa Longneck in II-XIII, Barry Bostwick took over the role for XIV.
** Kris Kristofferson plays Doc in IV.
** Michael York plays Pterano in VII.
** BernadettePeters has a minor role as Sue in X.
** Creator/KieferSutherland plays Bron in X.
** Cuba Gooding Jr. and Sandra Oh play Loofa and Doofa in XIII.
** RebaMcEntire plays Etta in XIV.
** Damon Wayans, Jr. plays Wild Arms in XIV.
* CreatorBacklash: While he had no involvement with them, Don Bluth dismissed the sequels offhand as [[StrictlyFormula "Cookie cutter thing(s)"]] [[http://www.ign.com/articles/2000/06/13/interview-with-don-bluth-part-1-of-3 in an interview.]] In [[http://www.digitpress.com/library/interviews/interview_don_bluth.html another interview]], he said;
-->''"--with Land Before Time, of course it did make money--it made a lot of money. And so all the sequels, they just said, "Let's create a franchise here, let's create something that goes on and on and on." And each one of them have made money, because basically the children who watch it just see the little characters they love and so they're not discerning about whether it looks great or it's a great story or anything."''
* FranchiseKiller: ''Wisdom of Friends'' ensured that no more ''Land Before Time'' sequels would be made for another nine years. The TV series is [[StillbornFranchise stillborned]]. Finally averted, though, as ''Journey of the Brave'' was released in 2016, and it is available on Creator/{{Netflix}} alongside the original film.
* MoneyDearBoy: Definitely why Universal Animation kept churning these things out; you could argue it's what gave them the budget for better projects, like ''WesternAnimation/EarthwormJim'' and ''The New WesternAnimation/WoodyWoodpecker Show'' (''WesternAnimation/{{Exosquad}}'' doesn't count, as it A: beegan airing in 1993, before the first sequel came out, and B: had a [[MerchandiseDriven toyline to back it up]]).
* TheOtherDarrin:
** Littlefoot's voice kept changing at certain points in the franchise: from movies I-II, IV-V, and from movies IX-XIV. Thomas Dekker kept the role the longest (singing in V, full-time from VI-IX).
** Candace Huttson kept her role as Cera from the original movie, up until movie IV. Past that point, Anndi [=McAffee=] took the role.
** Due to the large gap in release between XIII and XIV, Grandpa Longneck and Daddy Tops lost their original actors, requiring new ones.
** Also in movie XIV, oddly enough, the moms of Petrie and Ducky had the aforementioned Anndi [=McAffee=] and Meghan Strange [[note]] Ruby's voice [[/note]] respectively fill in for [[Creator/TressMacNeille Tress MacNeille]].
* ScienceMarchesOn: Averted. Loofa and Doofa don't bear even a remote resemblance to what Beipeiaosaurus actually looked like.
** Technically speaking, the Yellow Bellies resemble generic therizinosaurs. Very, ''very'' cartooninised therizinosaurs. When they were concepted, there wasn't a lot of Beipiaosaurus material to go by, so their appearance wasn't so offensively backwards.
* SequelGap: Given how infamous the franchise became for its numerous sequels, it's pretty easy to forget that the time between the original film (1988) and the second one, ''The Great Valley Adventure'' (1994), was actually fairly long, at six years.
** Then after the thirteenth film, ''The Wisdom of Friends'' (2007), it would be nine years before the fourteenth film, ''Journey of the Brave'' (2016), would be released.
* TalkingToHimself: Not only did John Ingle provide the voice of Cera's father in the sequels and the TV series, but he was also the narrator for the sequels as well.
* WhatCouldHaveBeen: Had she not died so suddenly, Creator/JudithBarsi stated that she would have liked to voice Ducky for the sequels because it was her favorite character she did.
** The end of the fourth movie seemed to imply that there were plans in place for Ali to return much sooner, possibly as early as the [[SequelHook very next movie]]. This never came to pass however, possibly due to a change in directors.
* WorkingTitle: The fourteenth film was originally titled ''Journey of the Heart''. However when the trailer debuted, it had been renamed to ''Journey of the Brave''.

!!TV Series:
* ScienceMarchesOn: Ruby's design includes feathers.
* ScrewedByTheNetwork: First, Cartoon Network, the channel that aired it, showed the series as part of a an early-morning preschool block featuring fare such as ''WesternAnimation/TheMrMenShow'', ''WesternAnimation/KryptoTheSuperdog'' and ''WesternAnimation/BabyLooneyTunes''. Second, the show aired at 9:00AM, a time when many kids would be at school. Third, the show only lasted a month before being dropped in favor of ''WesternAnimation/FostersHomeForImaginaryFriends''.
* ShortRunInPeru: The series technically originated in America, but Canada showed it first starting in January of 2007, showing each new episode at a steady pace. The United States, on the other hand, aired all of their initial batch of episodes in March of that year (starting the week after the twelfth movie came out, presumably to avoid confusion regarding where characters originating in that movie came from), even airing some of the episodes before they aired in Canada. However, even as Canada continued showing new episodes, the United States didn't air any of the episodes produced after "The Bright Circle Celebration" until nearly ''six months later'', when they aired "The Lonely Journey" and "The Missing Fast-Water Adventure" (both of which, in Canada, had premiered in April); it took until January of 2008 for all of the remaining episodes to finally see the light of day in the United States.
* UnfinishedEpisode: When the show was still airing new episodes, there were two rumored episode titles, "The Sky-Fire Promise" and "The Longneck and the Cobbler", circulating around the internet. Assuming that either or both of these episodes actually existed at some point, no record of them has been found. [[note]]The latter title is particularly bizarre, as neither definition of the word "cobbler" (a shoe-maker or a fruity baked dessert) fits particularly well with a cartoon that takes place in prehistoric times.[[/note]] However, it has been theorized that "The Sky-Fire Promise" was the WorkingTitle for "Return to Hanging Rock"; it hasn't been officially confirmed, though.
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