Tria the Threehorn is a gentle, caring Threehorn who becomes Cera’s stepmother, symbolizing compassion, patience, and emotional strength in The Land Before Time. She plays a key role in one of the franchise’s most mature and heartfelt storylines—learning how new families are built through understanding and time. Tria is a Threehorn who becomes the mate of Mr. Threehorn and the stepmother of Cera. Unlike Daddy Topps, Tria is peaceful and nurturing, preferring harmony over dominance. 