Let me explain before I introduce. Now I was suppose to introduce this character at the same time with Timothy but I was unable to. But I finally Got him on. Fellow GOF members Meet one of my fanfic character of LBT, Cera's Big Brother himself:

Tritops The Threehorn!!!
Background Biography:
Tritops is the oldest sibling in the Family; Son of Topsey and his Lost Mother. If your wondering why his nose horn looks the way it is he had an accident during a rock slide incident long ago but it manage to heal and harden. Tritops is surprisingly the wisest between him, his Father and Cera, of course his wisdom is second rated compared to Tria's wisdom. His Childhood is full of troublesome memories; there were incidents that were unforgettable. When he was Cera's age he believe that dinosaurs can unite and live in harmony, infact he had friends that were different species but after his Father found out he had the beating of his life and Topsey had the nerve to say "I wonder why your mother gain birth to you" (fanfic not a real line).

Tritops was in total shock when he heard those words it was disturbing enough for him to commit Suicide. He was literally going to jump off the cliff and drop to the bottom of a ditch but he heard a cry for help and to his surprise it was his little sister Cera (she was at the same age as Tricia back then). She wondered off and some how ended up hanging from the cliff a couple feet away from tritops. Tritops thinking fast he quick raced down to the bottom of the cliff in order to catch her. Suddenly cera's grip gave way and started falling and right where she was pretty close to the ground Tritops made a huge leep arcoss the rocky bottom, cera landing on tritops' back and roll landed on the other side. Tritops instantly got up and went to see if cera was OK. Being terrified she ran up to tritops and hold him tightly(weeping), that's when Tritops realize that his little sister needed more protection then anybody else so he continued to live on so Cera can grow up to be a Strong and a Healthy Threehorn. Months past and he grew into a very young threehorn adult and Cera now aged to her current appearance this is the time when he might littlefoot. An unfamiliar character but something about him Tritops couldn't figure out. When the earthquake came around Cera's life was in danger once again but Tritops came in the nick of time to save her and right after the earthquake subdue tritops shouted to his farther on the other side "Farther, No matter what happens I will keep Cera protected!" (again not a real line fanfic only). Later both Tritops and Cera meet up with Littlefoot and the other dinosaurs and from Tritops prospective he knew there was something special about Littlefoot, he knew littlefoot was making something that was a total disaster into a reality (Friendship between different species). After the Battle of the Sharptooth and finding the Great Valley Tritops went his seperate ways, staying in the Great Valley but living on his own. Topsey was happy to know that his now only daughter is alive and well, but trying to find out what happened to Tritops, Cera told him what tritops told her (Tritops Words): "I'm ready to live on my own plus I already proved how Great of a Threehorn I turned out to be like our father hoped I would be". Topsey was proud yet ashamed for not treating him the way he did before but deep down he Loves his Son with all his Heart.
Everything about Tritops (The Present)
Tritops is like a 19 yr old human trapped in a Dinosaur body, he does the unimaginable meaning he does things that you don't aspect to see other dinosaurs to do. Like picking up a Rock with his bear paw and burst somebody with it, High Jump Kick a Sharpteeth, and Mysteriously play the music for the songs for the gang to sing. Tritops loves to take advantage over his sisters especially Cera just for fun and one day he made Tricia cry and Tria gave him one BLOW (One hit KO). He tries to keep in sharp mainly for the ladies...yeah

he's furls with the ladies often times he fails. Tritops heroic acts back in the first movie also made him a earthy guardian so that mean where ever the gang goes hes bound to follow (<_< even though he hates doing the job); hes actually doing the Dinodians a favour with him around they don't show themselves but if the issue or issues become critical thats when they come.