Sonic Universe
After Sonic and The Supernatural Of Chun-Nan

Planet based on
The Land Before Time franchise with the add of the Ice Age characters like Cretaceous, Maelstrom, Rudy, Gavin, Roger, and Gertie since they're dinosaur and prehistoric creatures that lived there.
Based on Marvel's comic Death Of Wolverine
Based on The Land Before Time IV: Journey To The Mist but taken place after The Land Before TimeJourney Of The Brave

Main Antagonist
Red Claw

Characters introduce
Littlefoot
Cera
Petrie
Ducky
Spike
Chopper
Ruby

Plot
As the morning came upon, Cinos become different as did thing nicely, perfectly, and politely along with him not eating much, oversleeping, and spending alone time. Buck have seen these symptom before, Cinos have the Mortem Donatoris or commonly known as "The Deathgiver" virus which can kill any animal who lived on the planet Primatopia, no matter how big or how powerful their immune system is, which mean Cinos' healing factor is not working and slowing down when regenerating. But Buck own the cure, it's a special flower which can destroy The Deathgiver by eating the flower, it was called the Night Flower. Buck know that the Night Flower is now extinct due to the cyberforming of Primatopia but Tails have an idea, time travel but need something to power it up, Keeper arrive and give them the Energems to create an power a mechanical portal. The Freedom Fighters decided to go along with Buck to lead them again, Stitch, Toothless, Rufus, Sparky, Reuben, and Angel also go. Sticks decided to stay an watch over Cinos. Jumba, Pleakly, and Gantu follow them due to time travel being illegal. When head to the past, they encounter some kids who are talking dinosaurs who are led by the a young Brontosaurus (or if you if like him to be called Apatosaurus) named Littlefoot whose Grandpa is very illed again but this time have more of his friends to help him to go to the mist. But unnoticed to everyone, the younger Dino-Birds have freed other Sharpteeth led by Red Claw, Screech, and Thud to get revenge on the Gang Of Seven with his second-in-command and brother-in-arms Rudy. Together they faced the Gang Of Seven old enemies from their past and other obstacles.