Gorosaurus is a kaiju film monster which first appeared in Toho's 1967 film King Kong Escapes. It was an opponent of King Kong in the film, and it later had a prominent role in 1968's Destroy All Monsters.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...