Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 20442pr0001 Animal Body Part, Dinosaur, Indominus Rex Lower Jaw with Tan Teeth Pair of this part
• 77927pr0001 Animal Body Part, Dinosaur, Giganotosaurus Body with Black Markings, Scars Print Pair of this part