Dinosaur Land (also known as Dinosaur Island on the remake's official site, and Dinosaur World in the cartoon), is a land (a world of dinosaurs) in the Mushroom World and the region in which Mario, Luigi and Princess Toadstool go on vacation in Super Mario World. As usual, Bowser kidnaps Toadstool, and Mario and Luigi must defeat him to rescue her.
 Species in Dinosaur Land
This land has Yoshis living here, especially in Yoshi's Island. Despite the name, Super Mario World features only a few other dinosaur species: Blargg, Dino Rhino and Dino-Torch, Eerie, Rex, and Reznor. All are rarely encountered; Dino Rhino and Dino-Torch are found only in Chocolate Island, Eerie only in Ghost Houses, Blargg in three levels, and Reznor are boss characters. Most of the inhabitants are Koopas, Piranha Plants, and other Mario game staple enemies.
 Politics and culture
In Super Mario World, Dinosaur Land was more or less devoid of culture and even people, although it was known to be at least partially populated by Yoshis (who were known to be able to speak, but had not yet developed a distinctive, established culture). Later, in the Yoshi series (which presumably takes place on Dinosaur Land, although, as stated above, the actual setting is unconfirmed), Dinosaur Land was shown to have more intelligible inhabitants (who were confirmed to be the Yoshis on at least Yoshi's Island) who built tree-like huts and lived together in villages. These games, which gave Dinosaur Land much more culture and limited politics, showed that most of the Yoshis trusted in the main Green Yoshi and had great togetherness, being able to always depend on each other for help.
The Super Mario World television series was one of the earliest forms of media to show an inhabited Dinosaur Land (though here known as Dinosaur World) in-depth, and it revealed that the world was inhabited by cavepeople (oddly, Yoshi himself was the only Yoshi to ever appear in the show). These cavepeople were seen to have limited togetherness and intelligence, and had even built at least one city; they were, however, rather stupid and seemed to care little about culture and organization. Because of this, several Super Mario World show episodes dealt with Mario and Luigi attempting to popularize modern items among the cavepeople and help them in vaguely political things, although their plans most often went wrong. One of the most interesting and one of the few successful of their capers, though, involved Princess Toadstool opening up a school; this episode even revealed that Dinosaur Land had a flag (a red, yellow, and blue one depicting what appears to be a Yoshi) and a pledge to it. This pledge, which largely parodied the United States' Pledge of Allegiance, went like this: "I pledge allegiance to the flag of the United Lands of Dinosaur World, and to the repulsiveness for which he stands: one Koopa underground, reprehensible, with lizards and Goombas for all." It is likely that the second half of this pledge, which was awkwardly stated by Hip and Hop Koopa, is the Koopas' answer to the pledge, though, as it deals with the Koopa Troop and evil in addition to the fact that the other students gave Lemmy and Iggy odd looks as they said it, although this could have also been due to the fact that the two Koopa enemies had merely just arrived at their school.
The Super Mario Adventures comic also gave Dinosaur Land a surprising quantity of politics and culture even at the age of the Super Mario World game; it introduced Yoshi Village (a Yoshi-inhabited village eerily similar to the one seen in Mario & Luigi: Partners in Time) and even stated that Yoshi was the "Chairman of the Dinosaur Chamber of Commerce"; he presumably earned this title through election or another type of political gathering. A sign in the Nintendo Adventure Book Dinosaur Dilemma mentions a governor named B. Ron Tosaur.
 Names in other languages