Quick Look: Comic Animations on Roku has just five videos, all found on YouTube, featuring animated dinosaurs. Titles include Brachiosaurus - Dinosaur Songs from Dinostory by Howdytoons, Dinosaur Battle Royale: PDF by Albertozilla1974, and T Rex cartoon - dinosaur animation, which can be seen below.
This channel appears to have changed substantially since it was submitted for Roku approval, as the screenshots in the Roku Channel Store bear no resemblance to the current channel.
-- Information is current as of September 7, 2018
Developer's Channel Description: Comic Animations channel full of comedy videos. (This channel doesn't support SD Mode.)
CHANNEL STORE CATEGORY: Kids & Family
DEVELOPER: Jitendra Kumar