First appearance: King Dinosaur
Author/Creator: Bert I. Gordon, Tom Gries
Media: Film
Year: 1955
Located: Nova, a planet that has wandered into our solar system
Plot/Premise: Four astronauts in 1960 travel to a planet called Nova that has "settled" into our solar system. The crew begins to study the planet to see if it's able to withstand a possible Earth colony. After first discovering normal earth animals such as a lemur and an alligator, they soon encounter giant insects, dinosaurs, and the titular King Dinosaur.

Author/Creator: Charlotte Knight (story), Robert Creighton Williams (screenplay) (as Bob Williams), Christopher Knopf (screenplay), Ray Harryhausen (special effects), Nathan Juran (Director)
First appearance: 20 Million Miles to Earth
Media: Film
Year: 1957
Located: Venus
Plot/Premise: When the first manned flight to Venus returns to Earth, the rocket crash-lands in the Mediterranean near a small Italian fishing village. The locals manage to save one of the astronauts Colonel Calder, the mission commander. A young boy also recovers what turns out to be a specimen of an alien creature. Growing at a fantastic rate, this sulfur-digesting exosaur manages to escape and eventually threatens the city of Rome forcing the military to take drastic action.

First appearance: Planeta Bur (Planet of Storms)
Author/Creator: Aleksandr Kazantsev, Pavel Klushantsev
Media: Film
Year: 1962
Located: Venus
Plot/Premise: Three spacecraft set out for Venus, two arrive, one remains in orbit while the third lands. Exploring with their robot John and a hovercar they find a steamy, tropical world populated by dinosaurs, carnivorous plants and the remnants of an ancient civilization.
Adaptations: Women of the Prehistoric Planet (Film, 1966); Voyage to the Planet of Prehistoric Women (Film, 1968)

First appearance: Na Komete (On the Comet)
Author/Creator: Karel Zeman
Media: Film
Year: 1970
Located: Outer Space
Plot/Premise: In 1888, just as two men in French Algeria are about to duel, a comet collides with the earth, ripping off their corner of the planet and carrying it into space. Dinosaurs inhabit the comet (apparently picked up in an earlier collision) and the inhabitants must work together to survive. However another collision occurs restoring everything and everyone to its original state. Before long the people return too to their former bigoted and violent ways. Also filmed as Valley of the Dragons (1961) with "slurpasaurs" from One Million B.C. (1940).

First appearance: Dinosaur Planet
Author/Creator: Anne McCaffrey
Media: Novel
Year: 1978
Located: Deep space
Plot/Premise: The crew of shipbred technicians sent to the planet Ireta was prepared for a routine mission to catalog flora and fauna and search for new energy sources. Kai and his beautiful co-leader Varian, the best xenob-vet in the business, followed all the standard procedures, but the result of their investigations was totally unexpected. When their rescue ship mysteriously disappears, they suddenly find themselves surrounded by giant swamp creatures, deadly predators, and terrifying dinosaurs. And a curious change begins to come over many of the crew members—a mutinous change that will lead all of them, in one way or another, into the primitive darkness of a future world that holds many mysteries yet to be revealed. . . .
Sequels/Other appearances: Dinosaur Planet and Dinosaur Planet Survivors; Sassinak (1990, Anne McCaffrey and Elizabeth Moon); The Death of Sleep (1990, Anne McCaffrey and Jody Lynn Nye); Generation Warriors (1991, Anne McCaffrey and Elizabeth Moon)

Plot/Premise: In an unspecified future, a passenger spaceship crash lands on an earth-like world populated with savage dinosaurs. They encounter a variety of species and several of their number are killed. The survivors decide that their best chance lay in setting up a defensive perimeter on a plateau until rescuers arrive. However this area is menaced by a deadly Tyrannosaurus which must be defeated if they are to have any chance of survival.
Sequels/Other appearances: Galactic Raiders (Film, in production) has a similar premise.
Adaptation: Planet of Dinosaurs (Reimagining, comic, 2008)

First appearance: Dungeons and Dragons
Author/Creator: TSR Hobbies, Inc.
Media: Role playing game
Year: 1980
Located: Outer Space
Plot/Premise: Mystara's outer surface consists of three principal land masses: the continent of Brun, the continent of Skothar, and the continent of Davania, plus the island continent of Alphatia (up to AC 1010). In the officially published material, the Known World concentrated on the eastern portion of Brun along with the lands of the Sea of Dawn. The continents of Mystara resemble those of the earth approximately 135 million years ago.

The inhabitants of Mystara are diverse: humans of all races can be found here, along with myriad creatures such as elves, dwarves, halflings, orcs, and dragons. Dinosaurs exist at various locales on and in Mystara particularly on the Isle of Dread and in the Hollow World, a Pellucidar-like setting crammed with enormous diversity: yellow-skinned, horsemen orcs, pirates, tribal lizard men, Roman- and Egyptian-imperial analogs, dragon-riding elves, savage men, lost empires and of course, dinosaurs.

First appearance: Warcraft: Orcs and Humans
Author/Creator: Blizzard Entertainment
Media: Video game
Year: 1994
Located: Outer Space
Plot/Premise: Azeroth is the name of the world in which the majority of the Warcraft series is set. The world of Azeroth is the birthplace of many races, most notable being elves (night elves, high elves, and blood elves), humans, dwarves, tauren, goblins, trolls, gnomes, and dragons.

On Azeroth dinosaurs inspire awe and respect wherever they go. While animals, dinosaurs possess a might and magnificence that places them above other creatures of the natural world; many sapient races revere dinosaurs, or consider it a test of personal honor to hunt one of the great beasts.

While many types of dinosaurs exist, most are carnivores and thust share the same basic traits. Their forelimbs tend to prove ill-suited for combat, so they attack with their horned heads and teeth. They stake out territories and guard them fiercely. (This territorial instinct exists in herbivourus dinosaurs as well, but they tend to more peaceful behavior, attacking only when a creature wounds or threatens them.)

First appearance: Dinosaur Planet: Broncosaurus Rex
Author/Creator: Goodman Games
Media: Role Playing Game
Year: 2001
Located: Outer Space
Plot/Premise: The Civil War did not end as we know it, but resulted in separate Federal and Confederate nations. This state continued into the space age. In the year 2202, an alien planet full of dinosaurs was discovered, opening new mysteries and establishing the world of Dinosaur Planet: Broncosaurus Rex.

The dinosaurs are just as smart as the humans now flocking to their home. Velociraptors trade in alien weapons, leptoceratops guard their desert secrets, and T-rex dynasties protect their nests from egg raiders. Despite the dinosaurs, human pioneers arrive in droves at New Savannah's busy spaceport. Lured by free land, gold, and simple freedom, they yearn for a new life. Their wagon trails soon trudge west on the rutted path of the Tecumseh Trail, bringing new adventures to Cretasus.