Cera

Cera is an anti-heroine and the (former) secondary antagonist turned-deuteragonist of The Land Before Time. She is a cute and pretty tomboy triceratops in The Land Before Time. She was having a conflict with Littlefoot in the first film, but she was closest friends with him once they get along. She has a father named Topps, who's personality is quite similar to hers, but much more severe. Her mother has not been seen since the original movie, but as of the end of the eleventh installment, The Land Before Time XI: Invasion of the Tinysauruses, she has a lovely stepmother named Tria. She also has numerous siblings, but the only prominent one is her younger paternal half-sister, Tricia, the daughter of Tria and Topps. Cera is friends with the other six main characters in the films and TV series, Littlefoot, Ducky, Petrie, Spike, Chomper, and Ruby, although her strongest friendships appear to be with Littlefoot and Ducky. In the first film, she was introduced as the main antagonist but this was a plot that Sharpooth is the main villain later on.

Trivia

 * Cera is sometimes thought to be the main antagonist of the first movie, however the main antagonist is Sharptooth.