| "You are a Spiketail, so we will call you 'Spike'."
The subject(s) detailed in this article has/have been given a conjectural (and, as a result, unofficial) name, due to the lack of an official name for the article subject(s) to be referred to by.
The Hookthumb Sharpteeth are a quartet of Baryonyx that serve as the antagonistic forces of The Land Before Time XIII: The Wisdom of Friends. The leader of the quartet is the main antagonist. The leader has a scar that goes all the way around the middle of its head.
They are first seen not long after the Prehistoric Pals bring Loofah, Doofah, and Foobie into the Mysterious Beyond in search of Berry Valley. When their leader heard Loofah's loud shout, they started to move in that direction. After the gang leave Loofah, Doofah, and Foobie to find water for them, the pack got closer. They soon located the three Yellow Bellies and chased them into a canyon.
The pack had them cornered, but the gang soon returned to help. The pack were buried under hundreds of rocks after the gang rolled them down the canyon, and after the Yellow Bellies performed the Yellow Belly bounce, causing rocks to fall. The leader was still partly above the rocks, roaring at Littlefoot, but then the longneck knocked over huge rocks onto the sharptooth, finally burying him. The pack was temporarily defeated and buried in the pile.
The pack soon escaped the next day. They soon followed the Yellow Bellies' trail, which now consisted of an entire herd of them, as well as the main characters. Throughout the next while, they continued to follow the massive trail of footprints.
They later attack during the film's climax, chasing everyone. The leader at one point had Littlefoot cornered, but the little longneck simply ran under the sharptooth's legs. The pack are soon cornered and are killed when the Yellow Belly herd bounced up and down, making a piece of the cliff break off that the pack were standing on, causing the sharpteeth to fall hundreds of feet to their deaths.
Though generally regarded as rather basic threats, not particularly threatening while not being extremely incompetent, they are seen by many fans of the series as extremely sympathetic; their treatment by the characters (most notably being buried alive by Littlefoot and his friends and being forced off of a very high cliff to their deaths by the yellowbellies) often being viewed as callous and unnecessarily cruel.
- The Hookthumb Sharpteeth are the final antagonistic characters to appear in a Land Before Time film with involvement from Charles Grosvenor.
- They are the second member of the family Spinosauridae to appear in the franchise, only behind Spinosaurus itself in The Land Before Time XII: The Great Day of the Flyers.
- The number of their fingers they have varies between shots, being depicted with both the correct three fingers and the incorrect four fingers throughout the film.
- Similarly, their thumb claws are much smaller than those of their real life counterparts, and their jaws are not as crocodile-like as those of the real animal.
- The leader is the third character in the franchise to have a scar.
- Due to their treatment in the film, which has been seen as unnecessarily cruel by some fans, these Sharpteeth are considered by some to be among the most sympathetic of the Sharpteeth in the series.
- They are the third, fourth, fifth and sixth Sharpteeth in the franchise to die from falling off a cliff after The Sharptooth from the original film and the Sharptooth from the eighth film.
- ↑ Littlefoot calls one individual 'him'.