Gorosaurus [King Kong Escapes]
"Primeval Monster"
a dinosaur kaiju who first appeared in the 1967 film, King Kong Escapes, and later debuted in the Godzilla series in the 1968 film Destroy All Monsters. Gorosaurus is a descendant of Allosaurus (Well from what I’m reading from) that lives on Mondo Island and on Monsterland along with the rest of Earth’s monsters at the end of the 20th century.