The green Yoshi is the first and original dino from the Super Mario franchise. However, all colors are original if you consider how each Yoshi is unique. The red Yoshi is a baby dino from Yoshi's Island and Mario Pixel. The yellow Yoshi is another original from Super Mario and Mario Kart 8. Each Yoshi dino color is an original from certain video games. The green Yoshi merely takes the spotlight for being the first one to become famous as Mario's sidekick.