- This card is the first skeletal Dinosaur monster since "Mammoth Graveyard", not counting a Gemini Summoned "Skelesaurus".
- This monster's name is a portmanteau of "miscellaneous" (meaning "of various types or from different sources") and "saurus". This is fitting as it is a combination of various dinosaur and pterosaur skeletons: Tyrannosaurus lower jaw, neck, arms, ribcage, and hind legs, Triceratops upper skull, Ankylosaurus tail and tail club, Quetzalcoatlus wings, and Stegosaurus dorsal plates.