Cera

I can't remember all that well, but at the end of the first Land Before Time movie, when Cera was reunited with her family, didn't she run up to her sisters, and her mother and father were there? But in the sequels it's like they just erased all her sisters and her mother, leaving her with just her father. And then later on her father gets "re-married" and they have one little baby....which is weird cuz I'm pretty sure that triceratops had more than one egg at a time.