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.

• 98169pr0004 Animal Body Part, Dinosaur, Triceratops Head with Dark Brown Spots, Medium Nougat Horns this part is a pair of it
• 98170pr0005 Animal Body Part, Dinosaur, Ankylosaurus Leg, Left, Front, with Pin, Nougat Nails and Dark Brown Patches Print this part is a pair of it
• 98171pr0005 Animal Body Part, Dinosaur, Ankylosaurus Leg, Right, Front, with Pin, Nougat Nails and Dark Brown Patches Print this part is a pair of it
• 98172pr0005 Animal Body Part, Dinosaur, Ankylosaurus Leg, Left, Rear / Hind, with Pin, Nougat Nails and Dark Brown Patches Print this part is a pair of it
• 98173pr0005 Animal Body Part, Dinosaur, Ankylosaurus Leg, Right, Rear / Hind, with Pin, Nougat Nails and Dark Brown Patches Print this part is a pair of it