This card's first effect can be used to send a "Miscellaneousaurus" to the Graveyard, whose second effect can be used to Special Summon a Level 4 Dinosaur-Type monster, setting up for a Rank 4 Xyz Summon with this card.
Alternatively, "Miscellaneousaurus" can be added to the hand first, so that its first effect can be used as well.
If the Levels of the Dinosaur-Type monsters in the Graveyard are insufficient to Summon a higher-Level Dinosaur-Type monster, then "Petiteranodon" can be Special Summoned instead, since it can be subsequently destroyed by this card's second effect and have its own effect triggered to Special Summon the desired higher-Level monster.
This card's second effect is ideal for destroying "Babycerasaurus" or "Petiteranodon", in order to trigger that monster's effect.
Alternatively, if "Lost World" is active, then a Normal Monster can be targeted, since the last effect of "Lost World" can be applied to destroy one of the aforementioned monsters instead.